Prepared For: 2008 SUPPLEMENTAL EARLY SUMMER

Prepared for: 2008 SUPPLEMENTAL EARLY SUMMER

RARE VEGETATION SURVEY FOR THE ENBRIDGE PIPELINES INC. Enbridge Pipelines Inc. LINE 4 EXTENSION PROJECT

Prepared by:

TERA Environmental Consultants Suite 1100, 815 - 8th Avenue S.W. Calgary, Alberta T2P 3P2 Ph: 403-265-2885

June 2008 4882 Enbridge Pipelines Inc. 2008 Early Summer Rare Vegetation Survey Line 4 Extension Project

EXECUTIVE SUMMARY Enbridge Pipelines Inc. (Enbridge) currently operates the Line 4 pipeline, which originates at Hardisty, Alberta and transports crude oil southeast through Saskatchewan and Manitoba to the United States border. The Line 4 Extension Project (the Project) will extend Line 4 from Hardisty back to Edmonton, Alberta by connecting three existing inactive segments of pipe with three new segments of 914 mm O.D. (NPS 36) pipe to form an integrated pipeline to transport oil from Edmonton to Hardisty. The pipeline will have a capacity of 140,000 m3 (880,600 bbl) per day.

In addition to the new pipeline construction, the Line 4 Extension Project will include the construction of a new pump station at the existing Edmonton Terminal (SE 5-53-23 W4M), as well as modifications or upgrades to pumps and motors at the existing Edmonton Terminal (SE 5-53-23 W4M), Kingman Pump Station (SE 5-49-20 W4M) and Strome Pump Station (SW 2-46-15 W4M). Construction is scheduled to begin in early August 2008 and is expected to be completed by the end of 2008.

TERA Environmental Consultants (TERA) was commissioned by Enbridge to continue with rare vegetation surveys along the route for the pipeline component of the Line 4 Extension Project as follow- up to surveys conducted in the spring and summer of 2007. Supplemental vegetation surveys were required in 2008 prior to construction because: land access was not in place at some locations in 2007 at the time the survey was completed; route realignments have occurred since the 2007 survey was completed; and some temporary workspaces and shooflies were added since the 2007 survey was completed. Locations of rare plants observed during the 2007 surveys were also revisited during the 2008 surveys. The early summer 2008 rare vegetation surveys were conducted from May 23 to May 31, 2008. The focus of the 2008 surveys was to:

• identify rare vascular plant species or rare ecological communities on the route as defined by the Canadian Species at Risk Act (SARA), the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) or the Alberta Natural Heritage Information Centre (ANHIC);

• identify unique features or sites on the route that have a high potential to support rare plant species; and

• provide mitigation recommendations in the event that rare plants or rare ecological communities are observed.

During the early summer 2008 rare plant survey of the Project right-of-way, one ANHIC-listed rare plant species was observed. The rare plant observed was saltmarsh sandspurry (Spergularia salina, S2). It is recommended that the right-of-way be narrowed down 5 m or more, if feasible, along the north side and that the right-of-way is clearly marked and fenced to minimize disturbance to the rare plant habitat from KP 139.55 to KP 139.72.

No COSEWIC or SARA-listed species or species designated under the Alberta Wildlife Act, were found during the survey. No rare ecological communities were observed along the route.

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Enbridge Pipelines Inc. 2008 Early Summer Rare Vegetation Survey Line 4 Extension Project

TABLE OF CONTENTS Page EXECUTIVE SUMMARY ...... I 1.0 INTRODUCTION...... 1 1.1 Project Description...... 1 1.2 Ecosystem Classification ...... 2 2.0 SUPPLEMENTAL SURVEY LOCATIONS...... 3 3.0 METHODOLOGY...... 6 4.0 KNOWN SPECIES OF CONCERN ...... 7 5.0 RESULTS...... 8 5.1 Rare Plants ...... 8 5.2 Rare Ecological Communities...... 8 6.0 RECOMMENDED RARE PLANT MITIGATION ...... 10 7.0 REFERENCES...... 11 7.1 Personal Communications ...... 11 7.2 Literature Cited...... 11

LIST OF APPENDICES Appendix A Potential Rare Vascular Plant Species in the Ecoregions Traversed by the Line 4 Pipeline Route...... 13 Appendix B Potential Rare Ecological Communities in the Ecoregions Traversed by the Line 4 Pipeline Route...... 20 Appendix C Observed Plant Species – by Type and Common Name ...... 23 Appendix D Photoplates ...... 25

LIST OF FIGURES Figure 1 Early Summer 2008 Rare Plant Survey Locations ...... 4 Figure 2 Observed Rare Plant Location along the Enbridge Line 4 Extension Project ...... 9

LIST OF TABLES Table 1 Rare Plant Survey Locations along the Line 4 Extension Pipeline Route ...... 3 Table 2 Known Rare Plant Populations Near the Pipeline Route...... 7 Table 3 Recommended Mitigation Measures for the Rare Plant Species Observed Along the Line 4 Extension Pipeline Route...... 10 Table A-1 Potential Rare Vascular Plant Species in the Central Parkland Natural Subregion...... 14 Table A-2 Potential Rare Vascular Plant Species in the Dry Mixedwood Natural Subregion...... 17 Table B-1 Potential Rare Ecological Communities in the Central Parkland Natural Subregion...... 21 Table B-2 Potential Rare Ecological Communities in the Dry Mixedwood Natural Subregion...... 22

LIST OF PLATES Plate 1 Saltmarsh sandspurry observed near KP 139.7 in SE 19-44-12 W4M (May 27, 2008)...... 26 Plate 2 View northeast towards the saltmarsh sandspurry population near KP 139.7 in SE 19-44-12 W4M (May 27, 2008)...... 26

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Enbridge Pipelines Inc. 2008 Early Summer Rare Vegetation Survey Line 4 Extension Project

1.0 INTRODUCTION

1.1 Project Description Enbridge Pipelines Inc. (Enbridge) currently operates the Line 4 pipeline, which originates at Hardisty, Alberta and transports crude oil southeast through Saskatchewan and Manitoba to the United States (US) border. The Line 4 Extension Project (the Project) will extend Line 4 from Hardisty back to Edmonton, Alberta by connecting three existing inactive segments of pipe with three new segments of 914 mm O.D. (NPS 36) pipe to form an integrated pipeline to transport oil from Edmonton to Hardisty. The pipeline will have a capacity of 140,000 m3 (880,600 bbl) per day.

The pump station work will take place on previously disturbed, gravelled areas with no potential for the presence of rare plants; therefore, these areas are not further addressed in this report.

The route is located entirely within the White Area of Alberta and parallels existing rights-of-way for approximately 97% of its length. The construction right-of-way width required to construct the pipeline is generally 40 m wide, plus extra temporary work space where required. Construction is scheduled to begin in early August 2008 and is expected to be completed by the end of 2008.

The route traverses mainly privately-owned lands and some Crown-owned lands administered by the Alberta Sustainable Resource Development (ASRD) Lands Division and Alberta Infrastructure and Transportation (AIT). The project traverses Strathcona County, Leduc County, County of Camrose, Beaver County and Flagstaff County. Much of the route is composed of agricultural land. Topography along the route is generally flat to undulating.

TERA Environmental Consultants (TERA) was commissioned by Enbridge to continue conducting rare plant surveys along the route as follow-up to surveys conducted in 2007. This report is intended as follow- up to the Rare Vegetation Survey for the Proposed Enbridge Pipelines Inc. Line 4 Extension Project (TERA 2007).

In complying with the spirit and intent of the Alberta Energy and Utilities Board (EUB) IL 2002-1 Principles for Minimizing Surface Disturbance in Native Prairie and Parkland Areas (EUB 2002), a rare plant survey was conducted along all stretches of native vegetation 100 m or longer, and at all creek and river crossings. Several of these rare plant surveys were completed in summer 2007 (from May 28 to 30 and August 8 to 16, 2007); supplemental vegetation surveys were required in 2008 prior to construction because: land access was not in place at some locations in 2007 at the time the survey was completed; route realignments have occurred since the 2007 survey was completed; and some temporary workspaces and shooflies were added since the 2007 survey was completed. Locations of rare plants observed in the 2007 surveys were also revisited during the 2008 surveys. Early season surveys were conducted from May 23 to May 31, 2008, which is the focus of this report. Late season surveys are scheduled to be conducted from July 14 to July 17, 2008.

Although rare plant surveys can confirm the presence of rare plants, they cannot definitively state that rare plant species are not present on a site.

The main objectives of the surveys were to:

• identify unique features or sites on the route that have a high potential to support rare plant species; and

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Enbridge Pipelines Inc. 2008 Early Summer Rare Vegetation Survey Line 4 Extension Project

• provide mitigation recommendations in the event that rare plants or rare ecological communities are observed.

1.2 Ecosystem Classification Refer to Section 1.2 of the Rare Vegetation Survey for the Proposed Enbridge Pipelines Inc. Line 4 Extension Project (TERA 2007) for the Natural Subregions and Ecoregions encountered by the Project and a description of each.

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Enbridge Pipelines Inc. 2008 Early Summer Rare Vegetation Survey Line 4 Extension Project

2.0 SUPPLEMENTAL SURVEY LOCATIONS The rare plant surveys are conducted along route segments 100 m or longer that support native vegetation, and at areas of high potential such as creek and river crossings. Access to a few sites was not granted during the 2007 field season and some route realignments have occurred, therefore these areas were surveyed in 2008. In addition, a limited number of extra temporary workspaces and shooflies located on native vegetation were also surveyed in 2008. The segments of the route which were surveyed for rare plants are summarized in Table 1 and shown on Figure 1.

TABLE 1

RARE PLANT SURVEY LOCATIONS ALONG THE LINE 4 EXTENSION PIPELINE ROUTE

Alignment Sheet KP Project KP Legal Location (W4M) Land Use(s) E1 0.8 to 0.9 0.8 to .09 SE 32-52-23 Bush 1.1 to 1.3 1.1 to 1.3 E2 E 14.4 to E 14.5 15.6 to 15.7 SE 35-51-23 Bush 2 14.4 to 15.2 18.4 to 19.2 SW 30-51-22 Pasture 2 16.1 to 16.2 20.1 to 20.2 NE 19-51-22 Open Water 2 16.2 to 17.1 20.2 to 21.1 SE 19-51-22 Pasture 2 18.4 to 18.9 22.4 to 22.9 SW 17-51-22 Bush Pasture 2 18.9 to 19.1 22.9 to 23.1 SE 17-51-22 Bush Pasture 2 20.7 to 21.0 24.7 to 25.0 SW 9-51-22 Hay - Poor Sod 2 21.0 to 21.3 25.0 to 25.3 NW 4-51-22 Pasture 2 21.3 to 21.8 25.3 to 25.8 NW 4-51-22 Pasture 2 21.8 to 22.0 25.8 to 26.0 NE 4-51-22 Pasture 2 22.0 to 22.4 26.0 to 26.4 SE 4-51-22 Hay Pasture 2 26 30 E 28-50-22 Bush Pasture 3 26.2 to 26.9 30.2 to 30.9 SW 27-50-22 Bush Pasture 3 26.9 to 27.6 30.9 to 31.6 NW 22-50-22 Bush Pasture 6 71.8 to 71.9 72.0 to 72.1 NW 5-48-18 Pasture 6 72.8 to 72.9 73.0 to 73.1 SE 5-48-18 Cultivated 6 80.7 to 81.6 80.9 to 81.8 NW 19-47-17 Hay Pasture 6 81.6 to 82.3 81.8 to 82.5 NE 19-47-17 Pasture 10 132.0 to 132.1 132.0 to 132.1 SE 4-45-13 Pasture 10 132.2 to 132.9 132.2 to 132.9 NE 33-44-13 Pasture 10 135.2 to 135.8 135.2 to 135.8 NW 26-44-13 Pasture 10 135.8 to 136.7 135.8 to 136.7 NE 26-44-13 Pasture 10 136.7 to 137.7 136.7 to 137.7 SW 25-44-13 Pasture 10 137.7 to 138.3 137.7 to 138.3 SE 25-44-13 Pasture 11 138.3 to 138.8 138.3 to 138.8 NE 24-44-13 Pasture 11 138.8 to 139.6 138.8 to 139.6 NW 19-44-12 Pasture 11 139.6 to 140.6 139.6 to 140.6 SE 19-44-12 Pasture 11 140.6 to 141.4 140.6 to 141.4 SW 20-44-12 Pasture 11 141.4 to 141.6 141.4 to 141.6 NW 17-44-12 Pasture 11 141.6 to 142.6 141.6 to 142.6 NE 17-44-12 Pasture 11 143.2 to 143.5 143.2 to 143.5 SW 16-44-12 Pasture 11 143.5 to 144.4 143.5 to 144.4 SE 16-44-12 Pasture 12 159.5 159.5 SE 23-43-11 Open Water

June 2008 4882 Page 3

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LEGEND SOURCE REVISIONS ENBRIDGE PIPELINES INC. REV. DATE DESCRIPTION APP. MM LINE 4 EXTENSION PROJECT ALBERTA 1:250,000 NTS Map: © 2006. Edmonton Early and Late Summer !( Pump Station / Terminal Produced under license from Her Majesty the Queen in Right of Canada, Rare Plant Surveys FIGURE 1A Tofield with permission of Natural Resources Canada. Rare Plant Survey Data: TERA Environmental Consultants, 2007. AREAS OF RARE PLANT SURVEYS Vermilion Existing Pipeline ALONG THE PROPOSED Viking Early Summer Rare Plant Surveys Camrose SCALE 1:250,000 LINE 4 EXTENSION PIPELINE Proposed Pipeline 0 10 20 DRAWN DATE Daysland km TERA June 2008 Ponoka Killam Hardisty 1000 Kilometre Post (KP) (All Locations Approximate) CHECK MM PROJECT NO. 4882 Although there is no reason to believe that there are any errors associated with the data used to generate this product SCALE FIGURE 1A or in the product itself, users of these data are advised that errors in the data may be present. 4882_RAREPLANT_FIG_1A_SURVEY-2008.mxd 1:250,000 75 RGE. 17 RGE. 16 RGE. 15 RGE. 14 RGE. 13 RGE. 12 RGE. 11 RGE. 10 RGE. 9 W4M

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LEGEND SOURCE REVISIONS ENBRIDGE PIPELINES INC. REV. DATE DESCRIPTION APP. MM LINE 4 EXTENSION PROJECT 1:250,000 NTS Map: © 2006. ALBERTA Early and Late Summer Edmonton !( Pump Station / Terminal Produced under license from Her Majesty the Queen in Right of Canada, Rare Plant Surveys with permission of Natural Resources Canada. FIGURE 1B Tofield Rare Plant Survey Data: TERA Environmental Consultants, 2007. AREAS OF RARE PLANT SURVEYS Vermilion Existing Pipeline ALONG THE PROPOSED Early Summer Rare Plant Surveys Camrose Viking SCALE 1:250,000 LINE 4 EXTENSION PIPELINE Proposed Pipeline 0 10 20 DRAWN DATE Daysland km TERA June 2008 Ponoka Killam 1000 Kilometre Post (KP) (All Locations Approximate) CHECK PROJECT NO. 4882 Hardisty MM Although there is no reason to believe that there are any errors associated with the data used to generate this product SCALE or in the product itself, users of these data are advised that errors in the data may be present. 4882_RAREPLANT_FIG_1B_SURVEY-2008.mxd 1:250,000 FIGURE 1B Enbridge Pipelines Inc. 2008 Early Summer Rare Vegetation Survey Line 4 Extension Project

3.0 METHODOLOGY Prior to the field assessment, a literature review was conducted to identify rare vascular plant species and rare ecological communities with potential to occur in the project area. Using data available from ANHIC, COSEWIC and SARA, tables of potential rare vascular plant species (Appendix A) and rare ecological communities (Appendix B) were compiled (COSEWIC 2008, Environment Canada 2008). Definitions of rarity ranks and classes are included in the footnotes of the Appendices. The ANHIC vascular plant tracking list and watch list data (Gould 2006) is made available by Natural Subregion upon request and the latest edition was provided in 2007 (ANHIC 2007a). Subregion data was pared down to give a list more representative of the project area, and habitats were added using Kershaw et al. (2001) and Moss (1983). The tables were modified to include whether the known range and habitat of each plant is in the vicinity of the project. The range was based on the distribution maps in Kershaw et al. (2001) and Moss (1983). Habitat decisions were made during the survey based on the habitat types present. ANHIC rare ecological community data (Allen 2008) was reduced to information specific to the Natural Subregion through personal communications (Allen pers. comm.). The tables were modified to include whether the known range of the community is in the vicinity of the project. This was accomplished using the distribution maps of the component species and through personal communication with ANHIC, as necessary. None of the potential rare plant species or rare ecological communities in the project area has designations under the Alberta Wildlife Act, COSEWIC or SARA. Information regarding records of known rare plant or rare ecological community occurrences within the local project area was recently requested from ANHIC (ANHIC 2008). These results are included in Section 4.0. Satellite images were reviewed in order to identify areas of high potential habitat for rare plant species (seepage areas, riparian areas, under-represented ecosystems). Rare plant surveys were conducted based on rare plant survey guidelines as developed by the Alberta Native Plant Council (ANPC) (2000). A team of two rare plant specialists walked each selected portion of the route, noted the dominant plant communities, noted all identifiable species and searched for rare plants and unique habitat. A purposeful meander technique was used to survey the 40 m wide right-of- way. At locations where potentially significant microsites were observed, more detailed searches were performed. Species nomenclature is according to the ANHIC complete element list (ANHIC 2006) with more current taxonomic information drawn from NatureServe (2008a) when necessary. A list of all species observed during the survey is provided as Appendix C. Observed weed species are included in Appendix C, however, the specific locations and abundances of weeds are reported in more detail in the weed report published separately. In the event that a rare plant species is observed, a thorough search is conducted to determine the extent of the population. The population is mapped, a GPS location is recorded, photographs are taken, and a detailed ANHIC report form is completed and submitted to ANHIC. With the exception of SARA-listed plant species, which are not collected barring possession of the appropriate permits or agreements, voucher specimens of rare plant species are collected following the 1:50 guideline put forth by ANPC (2006), (i.e., one specimen may be collected for every 50 observed). However, due to the importance of voucher specimens to the verification of rare plant observations, specimens may be collected under certain circumstances at the lower population numbers (i.e., one specimen may be collected for every 20 observed) suggested in the ANPC rare plant survey guidelines (ANPC 2000). Circumstances under which specimens may be collected from smaller populations include encountering a species that is difficult to identify by photograph alone, or instances when collection is not likely to adversely impact the continued reproductive success of the population, such as when numerous flowering individuals are encountered. Any plant species requiring verification is confirmed by comparison with specimens at the University of Calgary herbarium or by other established botanists. In the event that a rare ecological community is observed, the community is mapped or marked on a satellite image and UTM coordinates are recorded. A description of the site and vegetation is documented on ANHIC ecological community forms. A species list for a representative plot of the appropriate size (20 m2 for forested, 10 m2 for shrub-dominated communities and 5 m2 for grasslands) is recorded and percent cover for each species is estimated.

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Enbridge Pipelines Inc. 2008 Early Summer Rare Vegetation Survey Line 4 Extension Project

4.0 KNOWN SPECIES OF CONCERN Of the potential rare plant and rare plant communities identified in the vicinity of the Project (Appendices A and B), there are no SARA-listed or COSEWIC-listed species that have potential to occur in the natural subregions traversed by the Project route.

During the Enbridge 2007 late summer rare plant survey, one ANHIC-listed rare plant species, saltmarsh sandspurry (Spergularia salina, S2) was observed. The location of this rare plant sighting is summarized in Table 2.

A search of the ANHIC database revealed known populations of two rare plant species (sandhills cinquefoil [Potentilla finitima] and annual skeletonweed [Shinnersoseris rostrata]) within 1 km of the route (ANHIC 2008).

Rare plant and rare ecological community records from past reports of rare plant surveys in the vicinity of the Project are described in Section 3.2 of the Rare Vegetation Survey for the Proposed Enbridge Pipelines Inc. Line 4 Extension Project (TERA 2007).

TABLE 2

KNOWN RARE PLANT POPULATIONS NEAR THE PIPELINE ROUTE

Legal UTM (NAD 83) First Project Location Abundance and Observation Species KP KP (W4M) Easting Northing Distribution Date saltmarsh 139.7 139.7 SE 19-44-12 450467 5850951 100-200 plants in a Aug. 15, 2007 sandspurry 13 x 40 m area

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Enbridge Pipelines Inc. 2008 Early Summer Rare Vegetation Survey Line 4 Extension Project

5.0 RESULTS A list of all identifiable species observed at the time of survey is included in Appendix C.

5.1 Rare Plants During the 2008 rare plant survey of the Project right-of-way, one ANHIC-listed rare plant species, saltmarsh sandspurry (Spergularia salina, S2), was observed (Appendix D). This population was originally observed in 2007. Right-of-way boundaries were staked in this area so that more accurate information regarding the location of the population with respect to the right-of-way could be utilized to confirm the mitigation. The location of this rare plant sighting is shown in Figure 2.

Saltmarsh sandspurry is a small prostrate annual herb, with stems 5-20 cm long and somewhat fleshy opposite leaves. The flowers are pink with five petals and the flowers produce egg-shaped capsules containing small, smooth brown seeds (Kershaw et al. 2001). Since the saltmarsh sandspurry is a late blooming species, the plant was in the early stages of growth at the time of the early summer survey. Although there is reasonable confidence in the identification of this species, a second opportunity to confirm its presence and distribution in the vicinity of the right-of-way will be provided during the late summer rare vegetation survey scheduled for mid-July 2008.

No COSEWIC or SARA-listed species or species designated under the Alberta Wildlife Act were found during the survey.

5.2 Rare Ecological Communities No rare ecological communities were observed along the route.

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LEGEND SCALE SOURCE REVISIONS ENBRIDGE PIPELINES INC. PROPOSED LINE 4 EXTENSION PROJECT REV. DATE DESCRIPTION APP. MM Proposed Pipeline UTM GRID: Zone 12, NAD 83. Rare Plant Population FIGURE 2 Centreline (May 2008) SCALE 1:5,000 Imagery: Enbridge Pipelines Inc. Date of Photography: 2005 RARE PLANTS OBSERVED ALONG THE 050 100 Road: GeoBase®, 2007. PROPOSED LINE 4 EXTENSION PIPELINE Enbridge Construction Footprint 1000 Kilometre Post (KP) m Municipal Boundaries: IHS Inc. 2007. T DURING THE 2008 SUMMER SURVEY Road (inset): ESRI, 2005. (All Locations Approximate) Hydrography (inset): Natural Resources Canada, 2006. F DRAWN TERA DATE June 2008 Existing ROW Rare Plants: TERA Environmental Consultants, 2007. A R CHECK MM PROJECT NO. 4882 Although there is no reason to believe that there are any errors associated with the data used to generate this product FIGURE 2 or in the product itself, users of these data are advised that errors in the data may be present. 4882_RAREPLANT_FIG_2_LOCS-2008.mxd D SCALE 1:5,000 Enbridge Pipelines Inc. 2008 Early Summer Rare Vegetation Survey Line 4 Extension Project

6.0 RECOMMENDED RARE PLANT MITIGATION During the 2008 rare plant survey, the right-of-way was staked in the vicinity of the saltmarsh sandspurry population, allowing for confirmation of the mitigation proposed as a result of the 2007 survey. Table 3 summarizes the mitigation proposed for this rare plant population.

TABLE 3

RECOMMENDED MITIGATION MEASURES FOR THE RARE PLANT SPECIES OBSERVED ALONG THE LINE 4 EXTENSION PIPELINE ROUTE

Legal Revised Mitigation Location Abundance and Mitigation Based on Species KP (W4M) Distribution Recommended in 2007 2008 Survey saltmarsh 139.55 to SE 19-44-12 ~1,000 plants in a It is recommended that It is recommended that sandspurry 139.72 175 x300 m area the right-of-way be the right-of-way be narrowed down and narrowed down 5 m or fenced to avoid the rare more, if feasible, along plant population for a the north side and that the distance of 40 m at this right-of-way is clearly location. Maintain the marked and fenced to preconstruction minimize disturbance to contours of the land. the rare plant habitat for a length of approximately 175 m. Maintain the preconstruction contours of the land.

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Enbridge Pipelines Inc. 2008 Early Summer Rare Vegetation Survey Line 4 Extension Project

7.0 REFERENCES

7.1 Personal Communications Allen, L. Senior Community Ecologist. Alberta Natural Heritage Information Centre. Edmonton, Alberta.

7.2 Literature Cited Alberta Native Plant Council. 2000. ANPC Guidelines for Rare Plant Surveys in Alberta. Website: http://www.anpc.ab.ca/assets/rareplant.pdf.

Alberta Native Plant Council. 2006. Plant Collection Guidelines for Researchers, Students and Consultants. Website: http://www.anpc.ab.ca/assets/researchers_students.pdf.

Alberta Natural Heritage Information Centre. 2006. List of all Vascular Plants Elements. Website: http://tprc.alberta.ca/parks/heritageinfocentre/plants/vascularbryophytes/ elementlist.aspx.

Alberta Natural Heritage Information Centre. 2007a. Tracked Elements listed by Subregion. Available upon request.

Alberta Natural Heritage Information Centre. 2007b. Current element occurrence data emails. Alberta Tourism, Parks, Recreation and Culture. Edmonton, Alberta. Various Dates.

Alberta Natural Heritage Information Centre. 2008. Project-specific element occurrence search report. Conducted by D. Hunter, Senior GIS Technologist, ANHIC, Alberta Community Development. Edmonton, Alberta. March 4, 2008.

Allen, L. 2008. Alberta Natural Heritage Information Centre Preliminary Ecological Community Tracking List. Alberta Tourism, Parks and Recreation, Edmonton, Alberta.

Argus, G.W. and K.M. Pryer. 1990. Rare Vascular Plants in Canada. Canadian Museum of Nature, Ottawa.

Committee on the Status of Endangered Wildlife in Canada. 2008. Canadian species at risk. Website: http://www.cosewic.gc.ca/eng/sct5/index_e.cfm.

Douglas, G.W., D. Meidinger and J.L. Penny. 2002. Rare Native Vascular Plants of British Columbia. 2nd Edition. Province of British Columbia.

Energy and Utilities Board. 2002. IL 2002-1: Principles for minimizing surface disturbance in Native Prairie and Parkland areas.

Environment Canada. 2008. Species at Risk. Website: http://www.speciesatrisk.gc.ca/search/default_e.cfm.

Gould, J. 2006. Alberta Natural Heritage Information Centre Tracking and Watch Lists - Vascular Plants, Mosses, Liverworts and Hornworts. Alberta Community Development, Parks and Protected Areas Division. Edmonton, AB. Website: http://tprc.alberta.ca/parks/heritageinfocentre/default.aspx.

Kershaw, L., J. Gould, D. Johnson and J. Lancaster. 2001. Rare Vascular Plants of Alberta. University of Alberta Press. Edmonton, Alberta. 484 pp.

Moss, E.H. 1983. Flora of Alberta. Second Edition. Revised by J.G. Packer. University of Toronto Press. Toronto, Ontario. 687 pp.

NatureServe. 2008a. NatureServe Explorer - An Online Encyclopedia of Life. Website: http://www.natureserve.org/explorer/index.htm.

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Enbridge Pipelines Inc. 2008 Early Summer Rare Vegetation Survey Line 4 Extension Project

NatureServe. 2008b. Heritage Status: Global, National and Subnational Conservation Status Ranks. Website: http://www.natureserve.org/explorer/servlet/NatureServe?init=Species

Porsild, A. and W. Cody. 1980. Vascular Plants of Continental Northwest Territories, Canada. National Museum of Natural Sciences, National Museum of Canada. Ottawa, Ontario. 667 pp.

TERA Environmental Consultants. 2007. Rare Vegetation Survey for the Proposed Enbridge Pipelines Inc. Alberta Line 4 Extension Project. September 2007.

Williston, P. 2001. The Botrychiaceae of Alberta. Alberta Environment. Edmonton, Alberta. 57 pp.

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Enbridge Pipelines Inc. 2008 Early Summer Rare Vegetation Survey Line 4 Extension Project

APPENDIX A

POTENTIAL RARE VASCULAR PLANT SPECIES IN THE ECOREGIONS TRAVERSED BY THE LINE 4 PIPELINE ROUTE

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Enbridge Pipelines Inc. 2008 Early Summer Rare Vegetation Survey Line 4 Extension Project

TABLE A-1

POTENTIAL RARE VASCULAR PLANT SPECIES IN THE CENTRAL PARKLAND NATURAL SUBREGION

Right-of-Way Preferred Habitat within Species in Vicinity of Provincial Additional Scientific Name Common Name Habitat Range Right-of-Way Rank1 Designations Artemisia tilesii Herriot's sagewort Open woods and river flats. yes yes S2 --- Aster pauciflorus few-flowered aster Saline soils, saline shores and yes yes S2 --- depressions. Aster umbellatus flat-topped white aster Moist woods, thickets, meadows yes yes S2 --- and swampy sites. Bolboschoenus river bulrush Margins of ponds and lakes. yes yes S1 --- fluviatilis Botrychium campestre field grape fern Sandy soils ditches. yes yes S1 G3G42 Botrychium multifidum leather grape fern Moist sandy areas, fields. yes yes S2 (W) --- var. intermedium Botrychium pinnatum northwestern grape fern Moist or wet, open places. yes yes S1 --- Botrychium spathulatum spatulate grape fern Meadows and open forests. --- yes S2 G32 Bromus latiglumis Canada brome Moist banks. yes yes S1 --- Calylophus serrulatus shrubby evening- Sandy prairies and dunes. yes --- S2 --- primrose Carex backii Back's sedge Dry, shady woods. yes yes S2 --- Carex crawei Crawe's sedge Calcareous meadows. yes --- S2 --- Carex heleonastes Hudson Bay sedge Often calcareous bogs and yes --- S2 --- marshes. Carex hookerana Hooker's sedge Plains, dry banks and open yes yes S2 (W) --- woods. Carex incurviformis var. seaside sedge Gravelly, alpine/subalpine areas; yes yes S2 --- incurviformis salt marshes, tundra, sand dunes, river flats. Carex lacustris lakeshore sedge Marshes and swampy woods. yes yes S2 --- Carex lasiocarpa hairy-fruited sedge Sedge meadows, fens, bogs, yes yes S4 (W) --- lakeshores, stream banks; usually very wet sites, sometimes forms floating mats. Carex parryana var. Parry's sedge Moist open meadows and low yes yes S1S2 (W) --- parryana ground near water; alkaline flats. Carex umbellata umbellate sedge Dry open areas, often sandy. --- yes S1 --- Carex vulpinoidea fox sedge Swampy ground. yes yes S2 --- Chenopodium dark green goosefoot Open disturbed areas, generally yes --- S1 --- atrovirens higher elevations. Chenopodium narrow-leaved Open sandy areas. yes yes SU --- leptophyllum goosefoot Coptis trifolia goldthread Damp, mossy woods, muskeg, yes --- S3 (W) --- willow scrub and tundra. Cryptantha kelseyana Kelsey's cat's eye Poorly developed sandy soils on yes yes S1 --- level to gently sloping valley bottom terraces, or uplands near the valley breaks. Cynoglossum northern wild comfrey Dry to moist woods. yes yes S1 --- virginianum var. boreale Cyperus schweinitzii sand nut-grass Dry sandy soil and active dunes. yes yes S2 --- Danthonia spicata poverty oat grass Dry to moist open areas and yes yes S1S2 --- open woodland. Drosera linearis slenderleaf sundew Marly bogs, wet calcareous yes --- S2 --- shores. Eleocharis tenuis slender spike-rush Lakeshores, streamsides and wet yes yes SU --- meadows. Ellisia nyctelea waterpod Moist, shady woods and --- yes S2 --- streambanks. Eupatorium maculatum spotted Joe-pye weed Marshy ground and moist open --- yes S1S2 --- woods.

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TABLE A-1 Cont'd

Right-of-Way Preferred Habitat within Species in Vicinity of Provincial Additional Scientific Name Common Name Habitat Range Right-of-Way Rank1 Designations Gentiana fremontii marsh gentian Turfy slopes. yes yes S2 --- Gratiola neglecta clammy hedge-hyssop Wet and muddy places. yes yes S2S3 --- Hedyotis longifolia long-leaved bluets Open sandy woods and montane yes yes S2 --- slopes. Lactuca biennis tall blue lettuce Moist open woods. yes yes S2 --- Lomatogonium rotatum marsh felwort Wet meadows and saline flats. yes yes S2S3 --- Lycopus americanus American water- Marshy ground. yes yes S3 (W) --- horehound Lysimachia hybrida lance-leaved loosestrife Moist meadows and shores, dry yes yes S2 --- to moist open woods. Malaxis monophylla white adder's-mouth Damp woods, banks and bogs. yes --- S2 --- Malaxis paludosa bog adder's-mouth Black spruce bogs, in sphagnum yes --- S1 --- moss. Mimulus glabratus smooth monkeyflower Springs and wet places. yes yes S1 --- Muhlenbergia scratch grass Moist alkaline soil, especially yes yes S2 (W) --- asperifolia where sandy. Muhlenbergia racemosa marsh muhly Sandhills and dry slopes. yes yes S1 --- Munroa squarrosa false buffalo grass Dry plains, slopes and disturbed yes yes S1 --- areas. Najas flexilis slender naiad Ponds and streams. yes yes S1S2 --- Oryzopsis canadensis Canadian rice grass Open woods and hillsides. yes yes S1 --- Osmorhiza longistylis smooth sweet cicely Moist woods. yes yes S2 --- Panicum leibergii Leiberg's millet Dry prairie and clearings. yes yes S1 --- Panicum wilcoxianum sand millet Dry open areas; sand hill prairie, yes yes S1 --- clearings, parklands. Physostegia ledinghamii false dragonhead Moist woods and streambanks. yes yes S2 G3?2 Polanisia dodecandra clammyweed Sandy or gravelly soils, disturbed yes yes S2 --- sites. Potamogeton linear-leaved pondweed Wet places, submerged in water. yes yes S2 --- strictifolius Potentilla finitima sandhills cinquefoil Sandy prairie, hills, dunes. yes yes S1 G2G4Q2 Potentilla paradoxa bushy cinquefoil Moist flats and shores. --- yes S2 (W) --- Quercus macrocarpa burr oak River valleys. yes --- S1? --- Rhynchospora slender beak-rush Calcareous bogs. yes --- S1 --- capillacea Rubus x paracaulis hybrid dwarf raspberry Boggy woods and marshes. yes --- S1 --- Ruppia cirrhosa widgeon-grass Saline and alkaline lakes, ponds yes yes S1S2 --- and ditches. Shinnersoseris rostrata annual skeletonweed Sandy banks and dunes. yes yes S2 --- Spergularia salina salt-marsh sand spurry Brackish or saline muds and yes yes S2 --- sands. Sphenopholis obtusata prairie wedge grass Moist meadows, open woods. --- yes S2 --- Townsendia exscapa low townsendia Dry hillsides and prairies. yes yes S2 --- Viola pedatifida crowfoot violet Dry grassland. yes yes S2 --- Wolffia borealis northern ducksmeal Ponds, lakes and slow-moving yes yes S3 (W) --- streams. Wolffia columbiana watermeal Floating or just beneath surface yes yes S2 --- in beaver ponds. Sources: ANHIC 2008, Argus and Pryer 1990, COSEWIC 2008, Douglas et al. 2002, Environment Canada 2008, Gould 2006, Kershaw et al. 2001, Looman and Best 1987, Moss 1983, NatureServe 2008a, 2008b, Porsild and Cody 1980, Williston 2001 Notes: 1. Provincial (S) ranks are based solely on the species' status within the province, and range from 1 (5 or fewer occurrences) to 5 (demonstrably secure under present conditions) (NatureServe 2008b). S1 = Critically Imperilled: because of extreme rarity or because of some factor(s) making it especially vulnerable to extirpation. Typically 5 or fewer occurrences or very few remaining individuals (<1,000).

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TABLE A-1 Cont'd

S2 = Imperilled: because of rarity or because of some factor(s) making it very vulnerable to extirpation. Typically 6-20 occurrences or few remaining individuals (1,000-3,000). S3 = Vulnerable: because rare and uncommon, or found in a restricted range (even if abundant at some locations), or because of other factors making it vulnerable to extirpation. Typically 21-100 occurrences or between 3,000 and 10,000 individuals. S4 = Apparently Secure: uncommon but not rare, and usually widespread in the province. Possible cause of long-term concern. Usually more than 100 occurrences and more than 10,000 individuals. S#S# = Range Rank: a numeric range rank (e.g., S2S3) is used to indicate the range of uncertainty about the exact status of the element. SU = Unrankable: currently unrankable due to lack of information or due to substantially conflicting information about status or trends. ? = Inexact numeric rank: denotes inexact numeric rank. Q = Questionable taxonomy: taxonomic status is questionable; numeric rank may change with taxonomy. (W) = Watch List: elements for which ANHIC wants to collect more information (Gould 2006). All other elements are on the ANHIC Tracking List. 2. Global (G) ranks are based on a species™ status world-wide and follow a system parallel to that for Provincial Ranks (Note 1), ranging from 1 (5 or fewer occurrences) to 5 (demonstrably secure under present conditions). For legibility, ranks G4-G5 and T4-T5 are not displayed (NatureServe 2008b).

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TABLE A-2

POTENTIAL RARE VASCULAR PLANT SPECIES IN THE DRY MIXEDWOOD NATURAL SUBREGION

Right-of-Way Preferred Habitat within Species in Vicinity of Provincial Additional Scientific Name Common Name Habitat Range Right-of-Way Rank1 Designations Artemisia tilesii Herriot's sagewort Open woods and river flats. yes yes S2 --- Aster umbellatus flat-topped white aster Moist woods, thickets, meadows yes yes S2 --- and swampy sites. Bolboschoenus river bulrush Margins of ponds and lakes. yes --- S1 --- fluviatilis Botrychium ascendens ascending grape fern Stream floodplain habitats ------S1 G2G32 dominated by deciduous shrubs. Botrychium lanceolatum lance-leaved grape fern Wet rocky slopes, meadows and --- yes S2 --- woods. Botrychium Michigan grape fern Open, grassy areas. yes yes SU G12 michiganense Botrychium minganense Mingan grape fern Open slopes, shores and --- yes S2S3 --- meadows. Botrychium multifidum leather grape fern Moist sandy areas, fields. yes yes S2 (W) --- var. intermedium Botrychium pallidum pale moonwort Open fields, occasionally shaded yes yes S1 G32 habitats. Botrychium pinnatum northwestern grape fern Moist or wet, open places. yes yes S1 --- Botrychium simplex dwarf grape fern Moist meadows and shores. yes yes S2 --- Cardamine parviflora small bitter cress Sandy soil and dry woods. yes yes S1 --- Cardamine pratensis meadow bitter cress Bogs and swamps. yes yes S2 --- Carex backii Back's sedge Dry, shady woods. yes yes S2 --- Carex heleonastes Hudson Bay sedge Often calcareous bogs and yes --- S2 --- marshes. Carex hookerana Hooker's sedge Plains, dry banks and open yes yes S2 (W) --- woods. Carex houghtoniana sand sedge Dry, sandy or gravelly places. --- yes S2 --- Carex hystericina porcupine sedge Shady marshes. yes yes S1 --- Carex lacustris lakeshore sedge Marshes and swampy woods. yes yes S2 --- Carex lasiocarpa hairy-fruited sedge Sedge meadows, fens, bogs, yes yes S4 (W) --- lakeshores, stream banks; usually very wet sites, sometimes forms floating mats. Carex mertensii purple sedge Moist montane woods and --- yes S1 --- streambanks. Carex pedunculata stalked sedge Forest edges. --- yes S1 --- Carex vulpinoidea fox sedge Swampy ground. yes yes S2 --- Chrysosplenium golden saxifrage Streambanks and marshy yes yes S3 G32 iowense ground in shade. Coptis trifolia goldthread Damp, mossy woods, muskeg, yes --- S3 (W) --- willow scrub and tundra. Danthonia spicata poverty oat grass Dry to moist open areas and yes yes S1S2 --- open woodland. Drosera linearis slenderleaf sundew Marly bogs, wet calcareous yes --- S2 --- shores. Dryopteris cristata crested shield fern Moist woods and marshes. yes yes S1 --- Eleocharis tenuis slender spike-rush Lakeshores, streamsides and yes yes SU --- wet meadows. Elodea bifoliata two-leaved waterweed Slow moving water with sandy yes --- S1 --- bottoms. Elodea nuttallii Nuttall’s waterweed Water of lakes and rivers, mostly yes --- SNR (W) --- calcareous. Eupatorium maculatum spotted Joe-pye weed Marshy ground and moist open --- yes S1S2 --- woods. Geranium carolinianum Carolina wild geranium Dry rocky woods, disturbed sites. yes yes S1 ---

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TABLE A-2 Cont'd

Right-of-Way Preferred Habitat within Species in Vicinity of Provincial Additional Scientific Name Common Name Habitat Range Right-of-Way Rank1 Designations Glyceria elata tufted tall manna grass Streamsides, wet meadows. --- yes S2 --- Gymnocarpium western oak fern Moist forests, glades, rocky --- yes S1 --- disjunctum slopes and streambanks. Hedyotis longifolia long-leaved bluets Open sandy woods and montane yes yes S2 --- slopes. Hypericum majus large Canada St. Moist depressions in sand yes yes S2 --- John's-wort dunes, sandy shores. Juncus brevicaudatus short-tail rush Shores and marshes; pioneer on yes yes S2 --- wet ground. Juncus stygius var. marsh rush Fens, mossy areas around ------S2 --- americanus springs and seepages. Lactuca biennis tall blue lettuce Moist open woods. yes yes S2 --- Lomatogonium rotatum marsh felwort Wet meadows and saline flats. yes yes S2S3 --- Luzula acuminata sharp-pointed wood- Moist woodland, clearings. --- yes S1 --- rush Luzula rufescens reddish wood-rush Mixedwood forest. --- yes S1 --- Malaxis monophylla white adder's-mouth Damp woods, banks and bogs. yes yes S2 --- Malaxis paludosa bog adder's-mouth Black spruce bogs, in sphagnum yes --- S1 --- moss. Muhlenbergia scratch grass Moist alkaline soil, especially yes yes S2 (W) --- asperifolia where sandy. Muhlenbergia racemosa marsh muhly Sandhills and dry slopes. yes --- S1 --- Najas flexilis slender naiad Ponds and streams. yes --- S1S2 --- Nymphaea leibergii pygmy water-lily Ponds and quiet waters. yes --- S1 --- Oryzopsis canadensis Canadian rice grass Open woods and hillsides. yes yes S1 --- Oryzopsis micrantha little-seed rice grass Dry open areas and rocky --- yes S2 --- slopes; sandy woodlands. Panicum leibergii Leiberg's millet Dry prairie and clearings. yes yes S1 --- Parnassia parviflora small northern grass-of- Bogs and stream banks; wet --- yes S2 (W) --- parnassus areas. Physostegia false dragonhead Moist woods and streambanks. yes yes S2 G3?2 ledinghamii Plantago canescens western ribgrass Nonalkaline grassy and gravelly ------S2 (W) --- slopes. Polygala paucifolia fringed milkwort Marshy coniferous woods. ------S1 --- Potamogeton foliosus leafy pondweed Shallow standing water. yes yes S2 --- Potamogeton blunt-leaved pondweed Lakes and ponds; cold springs, yes --- S2 --- obtusifolius streams. Potamogeton robbinsii Robbins' pondweed Shallow water. yes yes S1 --- Potamogeton linear-leaved pondweed Wet places, submerged in water. yes yes S2 --- strictifolius Pyrrocoma uniflora one-flowered ironplant Dry to moist open slopes and ------S3 (W) --- banks. Rhynchospora slender beak-rush Calcareous bogs. yes --- S1 --- capillacea Rubus x paracaulis hybrid dwarf raspberry Boggy woods and marshes. yes --- S1 --- Ruppia cirrhosa widgeon-grass Saline and alkaline lakes, ponds yes yes S1S2 --- and ditches. Sagittaria latifolia broad-leaved Ponds and lakes. ------S1 --- arrowhead Sarracenia purpurea pitcher-plant Peat bogs and muskeg. ------S2 --- Scirpus pallidus pale bulrush Marshy areas. yes yes S1 --- Sisyrinchium pale blue-eyed grass Moist grassy areas. yes yes S2S3 G3G42 septentrionale Sparganium bur-reed Ponds. yes --- S1 --- glomeratum

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TABLE A-2 Cont'd

Right-of-Way Preferred Habitat within Species in Vicinity of Provincial Additional Scientific Name Common Name Habitat Range Right-of-Way Rank1 Designations Stellaria crispa wavy-leaved chickweed Moist woods, moderate --- yes S2 --- elevations. Trichophorum clintonii Clinton's bulrush Open woodland and turfy shores. yes yes S1 --- Trichophorum pumilum dwarf bulrush Calcareous bogs. yes --- S2 --- Viola pallens Macloskey's violet Boggy or wet ground and wet yes yes S2 --- thickets. Wolffia borealis northern ducksmeal Ponds, lakes and slow-moving yes --- S3 (W) --- streams. Wolffia columbiana watermeal Floating or just beneath surface yes --- S2 --- in beaver ponds. Sources: ANHIC 2008, Argus and Pryer 1990, COSEWIC 2008, Douglas et al. 2002, Environment Canada 2008, Gould 2006, Kershaw et al. 2001, Looman and Best 1987, Moss 1983, NatureServe 2008a, 2008b, Porsild and Cody 1980, Williston 2001 Notes: 1. Provincial (S) ranks are based solely on the species' status within the province, and range from 1 (5 or fewer occurrences) to 5 (demonstrably secure under present conditions) (NatureServe 2008b). S1 = Critically Imperilled: because of extreme rarity or because of some factor(s) making it especially vulnerable to extirpation. Typically 5 or fewer occurrences or very few remaining individuals (<1,000). S2 = Imperilled: because of rarity or because of some factor(s) making it very vulnerable to extirpation. Typically 6-20 occurrences or few remaining individuals (1,000-3,000). S3 = Vulnerable: because rare and uncommon, or found in a restricted range (even if abundant at some locations), or because of other factors making it vulnerable to extirpation. Typically 21-100 occurrences or between 3,000 and 10,000 individuals. S4 = Apparently Secure: uncommon but not rare, and usually widespread in the province. Possible cause of long-term concern. Usually more than 100 occurrences and more than 10,000 individuals. S#S# = Range Rank: a numeric range rank (e.g., S2S3) is used to indicate the range of uncertainty about the exact status of the element. SU = Unrankable: currently unrankable due to lack of information or due to substantially conflicting information about status or trends. ? = Inexact numeric rank: denotes inexact numeric rank. Q = Questionable taxonomy: taxonomic status is questionable; numeric rank may change with taxonomy. (W) = Watch List: elements for which ANHIC wants to collect more information (Gould 2006). All other elements are on the ANHIC Tracking List. 2. Global (G) ranks are based on a species™ status world-wide and follow a system parallel to that for Provincial Ranks (Note 1), ranging from 1 (5 or fewer occurrences) to 5 (demonstrably secure under present conditions). For legibility, ranks G4-G5 and T4-T5 are not displayed (NatureServe 2008b).

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APPENDIX B

POTENTIAL RARE ECOLOGICAL COMMUNITIES IN THE ECOREGIONS TRAVERSED BY THE LINE 4 PIPELINE ROUTE

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TABLE B-1

POTENTIAL RARE ECOLOGICAL COMMUNITIES IN THE CENTRAL PARKLAND NATURAL SUBREGION

Scientific Names Common Names Rank 1 FOREST / WOODLAND Acer negundo / Prunus virginiana Manitoba maple / choke cherry S1S2 Betula papyrifera / Shepherdia canadensis paper birch / buffaloberry S1S2 Betula neoalaskana / Ledum groenlandicum Alaska birch / common Labrador tea S1S2 Larix laricina – Picea mariana / Cornus stolonifera – Rubus tamarack – black spruce / red-osier dogwood – wild red raspberry S1S2 idaeus Picea mariana / Cornus stolonifera / feathermoss black spruce / red-osier dogwood / feathermoss S1S2 Populus tremuloides / Juniperus horizontalis / Carex siccata Aspen / creeping juniper / hay sedge S2S3 SHRUBLAND Betula occidentalis / Juniperus horizontalis Water birch / creeping juniper S2S3 Betula pumila - Salix spp. / Carex spp. dwarf birch - willow / sedges S3? (W) Elaeagnus commutata – Prunus virginiana / Carex siccata Silverberry – chokecherry / hay sedge S2S3 Salix bebbiana / Cornus stolonifera beaked willow / red -osier dogwood S3? DWARF SHRUBLAND Juniperus horizontalis / Calamovilfa longifolia – Carex Creeping juniper / sand grass – sun-loving sedge S2S3 pensylvanica ssp. heliophila HERBACEOUS Calamovilfa longifolia – Sporobolus cryptandrus Sand grass – sand dropseed S2S3 Carex pseudocyperus - Calla palustris cypress-like sedge - water arum S1S2 Distichlis stricta - Pascopyrum smithii salt grass - western wheat grass S2 Festuca hallii grassland plain's rough fescue grassland S1 Festuca hallii - Calamovilfa longifolia plain's rough fescue - sand grass S1 Festuca hallii - Carex spp. / Arctostaphylos uva-ursi plain's rough fescue - sedges / common bearberry S1 Festuca hallii - Koeleria macrantha / Juniperus horizontalis / plain's rough fescue - june grass / creeping juniper / forbs S2 forbs Festuca hallii - Stipa viridula plain's rough fescue - green needle grass S1 Glyceria striata community fowl manna grass community SU Koeleria macrantha – Pascopyrum smithii june grass – western wheat grass S1S2 Muhlenbergia asperifolia - Scirpus nevadensis - Distichlis scratch grass - Nevada bulrush -salt grass S1S2 stricta Pascopyrum smithii - Hordeum jubatum western wheatgrass - foxtail barley S1 Puccinellia nuttalliana community Nuttall's salt-meadow grass community S3? SPARSELY VEGETATED Juniperus horizontalis / (Koeleria macrantha) / Cladina mitis creeping juniper / (june grass) / green reindeer lichen S1S2 Salicornia rubra emergent marsh samphire emergent marsh S2, G2G3 Scirpus nevadensis -(Triglochin maritima) Nevada bulrush -(seaside arrow-grass) S2S3 Spartina gracilis - (Pascopyrum smithii) alkali cord grass - (western wheat grass) S2S3 Sporobolus cryptandrus semi-active dune sand dropseed semi-active dune S2 Triglochin maritima emergent marsh seaside arrow-grass emergent marsh S2? AQUATIC Ruppia cirrhosa aquatic community widgeon-grass aquatic community S2 Source: Allen 2008 Notes: 1. Provincial (S) and Global (G) ratings range from S1 (5 or fewer occurrences or very few remaining hectares) to S5 (demonstrably secure, though it may be quite rare in parts of its range, especially at the periphery). Ranks may be combined (e.g., S1S2). This indicates a larger margin of error than ranks assigned a "?" qualifier. Ratings that are not of concern (4-5) are not included. ? = Element is not yet ranked (i.e., S?), or has an inexact numerical rank (e.g., S1?) U = Unrankable: currently unrankable due to lack of information or due to substantially conflicting information about status or trends. (W) = on Watch list, not Tracking List.

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TABLE B-2

POTENTIAL RARE ECOLOGICAL COMMUNITIES IN THE DRY MIXEDWOOD NATURAL SUBREGION

Scientific Names Common Names Rank 1 FOREST / WOODLAND Betula neoalaskana / Ledum groenlandicum Alaska birch / common Labrador tea S1S2 Larix laricina / Carex prairea tamarack / prairie sedge S1 Larix laricina – Picea mariana / Cornus stolonifera – Rubus tamarack – black spruce / red-osier dogwood – wild red raspberry S1S2 idaeus Picea glauca / Alnus tenuifolia - Betula neoalaskana / white spruce / river alder - Alaska birch / meadow horsetail / stair-step S3 Equisetum pratense / Hylocomium splendens moss Picea mariana / Cornus stolonifera / feathermoss black spruce / red-osier dogwood / feathermoss S1S2 Populus balsamifera / Viburnum opulus / Matteuccia balsam poplar / high-bush cranberry / ostrich fern S1S2 struthiopteris Populus tremuloides / Rosa acicularis / Apocynum aspen / prickly rose / spreading dogbane SU androsaemifolium Populus tremuloides / Vaccinium myrtilloides aspen / common blueberry S2? SHRUBLAND Alnus tenuifolia / Matteuccia struthiopteris river alder / ostrich fern S2? Amelanchier alnifolia / Arctostaphylos uva-ursi / Oryzopsis saskatoon / common bearberry / northern rice grass S2S3 pungens Salix drummondiana / Scripus microcarpus - Calamagrostis Drummond's willow / small fruited bulrush - bluejoint S1 canadensis HERBACEOUS Carex pseudocyperus - Calla palustris cypress-like sedge - water arum S1S2 Carex spp. – Stipa curtiseta – Danthonia intermedia upland sedge – western porcupine grass – intermediate oat grass S1? Elymus lanceolatus – Pascopyrum smithii northern wheatgrass – western wheatgrass S2? Elymus trachycaulus - Hierochloe hirta ssp. arctica slender wheat grass - sweet grass SU Pascopyrum smithii – Artemisia tilesii – Artemisia frigida western wheat grass – Herriot’s sagewort – pasture sagewort S1 SPARSELY VEGETATED Salicornia rubra emergent marsh samphire emergent marsh S2, G2G3 Source: Allen 2008 Notes: 1. Provincial (S) and Global (G) ranks range from S1 (5 or fewer occurrences or very few remaining hectares) to S5 (demonstrably secure, though it may be quite rare in parts of its range, especially at the periphery). Ranks may be combined (e.g., S1S2). This indicates a larger margin of error than ranks assigned a "?" qualifier. Ratings that are not of concern (4-5) are not included. U = Unrankable: currently unrankable due to lack of information or due to substantially conflicting information about status or trends. ? = Element is not yet ranked (i.e., S?), or has an inexact numerical rank (e.g., S1?)

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APPENDIX C

OBSERVED PLANT SPECIES – BY TYPE AND COMMON NAME

Scientific Name Common Name TREES Populus balsamifera balsam poplar Populus tremuloides aspen SHRUBS Elaeagnus commutata silverberry Rosa woodsii common wild rose Salix sp. willow Symphoricarpos occidentalis buckbrush FORBS Achillea millefolium common yarrow Antennaria parvifolia small-leaved everlasting Artemisia biennis biennial sagewort Artemisia frigida pasture sagewort Artemisia ludoviciana prairie sagewort Aster hesperius western willow aster Caltha palustris marsh-marigold Cerastium arvense field mouse-ear chickweed Cicuta maculata water-hemlock Equisetum fluviatile swamp horsetail Fragaria virginiana wild strawberry Galium boreale northern bedstraw Grindelia squarrosa gumweed Heterotheca villosa golden aster Hordeum jubatum foxtail barley Iva axillaris povertyweed Lemna minor common duckweed Lycopus asper western water-horehound Potentilla anserina silverweed Potentilla hippiana woolly cinquefoil Ranunculus sceleratus celery-leaved buttercup Rumex triangulivalvis narrow-leaved dock Solidago canadensis Canada goldenrod Solidago sp. goldenrod Spergularia salina salt-marsh sand spurry Suaeda calceoliformis western sea-blite Thermopsis rhombifolia golden bean Triglochin maritima seaside arrow-grass GRASSES, SEDGES AND RUSHES Agropyron smithii western wheatgrass Agropyron sp wheatgrass Agrostis scabra rough hair grass Agrostis stolonifera redtop Beckmannia syzigachne slough grass Bromus inermis awnless brome Calamagrostis canadensis bluejoint Carex sp. sedge Carex stenophylla low sedge Corydalis sp. corydalis Deschampsia cespitosa tufted hair grass Distichlis stricta salt grass Eleocharis palustris creeping spike-rush Glyceria grandis common tall manna grass Hierochloe hirta sweet grass

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APPENDIX C Cont'd

Scientific Name Common Name Juncus balticus wire rush Phalaris arundinacea reed canary grass Poa pratensis Kentucky bluegrass Puccinellia nuttalliana Nuttall's salt-meadow grass Scirpus paludosus prairie bulrus WEEDS Agropyron pectiniforme crested wheatgrass Astragalus cicer cicer milk vetch Axyris amaranthoides Russian pigweed Brassica kaber wild mustard Capsella bursa-pastoris shepherd's-purse Chenopodium album lamb's-quarters Cirsium arvense creeping (Canada) thistle Crepis tectorum annual hawk's-beard Descurainia sophia flixweed Galeopsis tetrahit hemp-nettle Kochia scoparia summer-cypress Matricaria matricarioides pineappleweed Medicago sativa alfalfa Phleum pratense timothy Plantago major common plantain Polygonum arenastrum common knotweed Polygonum convolvulus wild buckwheat Rumex crispus curled dock Setaria viridis green foxtail Sonchus arvensis perennial sow-thistle Taraxacum officinale common dandelion Thlaspi arvense stinkweed Trifolium hybridum alsike clover Typha latifolia common cattail Urtica dioica common nettle Vicia americana wild vetch Viola adunca early blue violet

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APPENDIX D

PHOTOPLATES

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Plate 1 Saltmarsh sandspurry observed near KP 139.7 in SE 19-44-12 W4M (May 27, 2008).

Plate 2 View northeast towards the saltmarsh sandspurry population near KP 139.7 in SE 19-44-12 W4M (May 27, 2008).

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