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Hanford Site Rare Plant Monitoring Report for Calendar Year 2015

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Hanford Site Rare Plant Monitoring Report for Calendar Year 2015 HNF-64625 Rev. 0 Hanford Site Rare Plant Monitoring Report for Calendar Year 2015 Prepared for the U.S. Department of Energy Assistant Secretary for Environmental Management Contractor for the U.S. Department of Energy under Contract DE-AC06-09RL14728 P.O. Box 650 Richland, Washington 99352 Approved for Public Release; Further Dissemination Unlimited HNF-64625 Rev. 0 Hanford Site Rare Plant Monitoring Report for Calendar Year 2015 Debra Salstrom, SEE Botanical Consulting, LLC Richard Easterly, SEE Botanical Consulting, LLC Judy Pottmeyer, MSA Emily Norris, MSA Date Published February 2020 Prepared for the U.S. Department of Energy Assistant Secretary for Environmental Management P.O. Box 550 Richland, Washington 99352 By Sarah Harrison at 1:04 pm, Mar 02, 2020 Release Approval Date Approved for Public Release; Further Dissemination Unlimited HNF-64625 Rev. 0 TRADEMARK DISCLAIMER Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof or its contractors or subcontractors. This report has been reproduced from the best available copy. Printed in the United States of America HNF-64625 Rev. 0 This Page Intentionally Left Blank. HNF-64625 Rev. 0 Table of Contents 1.0 INTRODUCTION ........................................................................................................................... 1 1.1 Purpose and Need for Rare Plant Monitoring at Hanford .......................................................... 1 1.2 Plant Species of Conservation Concern on the Hanford Site...................................................... 2 1.2.1 Washington State Listed Rare Plant Species ...................................................................... 2 1.2.2 Federally-Listed Rare Plant Species ................................................................................... 3 1.3 Report Scope............................................................................................................................ 4 2.0 MONITORING UPLAND PLANTS OF CONSERVATION CONCERN ..................................................... 4 2.1 Background .............................................................................................................................. 4 2.2 Methods .................................................................................................................................. 4 2.3 Results ..................................................................................................................................... 6 2.3.1 Aliciella leptomeria ........................................................................................................... 6 2.3.2 Astragalus columbianus .................................................................................................... 7 2.3.3 Calyptridium roseum ........................................................................................................ 8 2.3.4 Cryptantha leucophaea .................................................................................................. 10 2.3.5 Eremogone franklinii var. thompsonii ............................................................................. 11 2.3.6 Eremothera minor .......................................................................................................... 12 2.3.7 Eremothera pygmaea ..................................................................................................... 13 2.3.8 Erigeron piperianus......................................................................................................... 14 2.3.9 Erythranthe suksdorfii..................................................................................................... 15 2.3.10 Leymus flavescens .......................................................................................................... 16 2.3.11 Loeflingia squarrosa var. squarrosa ................................................................................ 17 2.3.12 Oenothera cespitosa ssp. cespitosa ................................................................................. 18 2.4 Discussion .............................................................................................................................. 19 3.0 CRYPTANTHA LEUCOPHAEA MONITORING ................................................................................. 21 3.1 Description............................................................................................................................. 21 3.2 Monitoring Methodology ....................................................................................................... 22 3.3 Habitat on the Hanford Site .................................................................................................... 22 3.4 CY 2015 Monitoring Results ................................................................................................... 24 3.5 CY 2015 Seed Collection ......................................................................................................... 24 4.0 REFERENCES .............................................................................................................................. 26 i HNF-64625 Rev. 0 Figures Figure 1. Central Hanford Study Area (in Red) for the 2015 Rare Plant Survey. ........................................ 5 Figure 2. Aliciella leptomeria (Great Basin Gilia) in Bloom. (Photo by Sheri Hagwood, hosted by the USDA-NRCS PLANTS Database). ............................................................................................................... 6 Figure 3. Astragalus columbianus (Columbia Milkvetch) in Flower. ........................................................ 8 Figure 4. Calyptridium roseum (Rosy Pussypaws). ................................................................................... 9 Figure 5. Cryptantha leucophaea (Gray Cryptantha). ............................................................................. 10 Figure 6. Eremogone franklinii var. thompsonii (Thompson's Sandwort)................................................ 11 Figure 7. Eremothera minor (Small-Flowered Evening-Primrose). (Photo by Sheri Hagwood, hosted by the USDA-NRCS PLANTS Database). ....................................................................................................... 12 Figure 8. Eremothera pygmaea (Dwarf Evening-Primrose). ................................................................... 13 Figure 9. Erigeron piperianus (Piper's Daisy).......................................................................................... 14 Figure 10. Erythranthe suksdorfii (Suksdorf's Monkeyflower). ............................................................... 16 Figure 11. Leymus flavescens (Sand Wildrye). ....................................................................................... 17 Figure 12. Loeflingia squarrosa (Spreading Pygmyleaf).......................................................................... 18 Figure 13. Oenothera cespitosa (Tufted Evening-Primrose). .................................................................. 19 Figure 14. Cryptantha leucophaea (Gray Cryptantha) in Bloom. ............................................................ 22 Figure 15. Typical Habitat for Cryptantha leucophaea. .......................................................................... 23 Figure 16. General Area Surveyed for Cryptantha leucophaea in 2015. ................................................. 25 Tables Table 1. Results of CY 2015 Survey for Aliciella leptomeria. ................................................................ 7 Table 2. Results of CY 2015 Survey for Astragalus columbianus. ......................................................... 8 Table 3. Results of CY 2015 Survey for Calyptridium roseum............................................................... 9 Table 4. Results of CY 2015 Survey for Cryptantha leucophaea. ........................................................ 11 Table 5. Results of CY 2015 Survey for Eremogone franklinii var. thompsonii. ................................... 12 Table 6. Results of CY 2015 Survey for Eremothera minor. ............................................................... 13 Table 7. Results of CY 2015 Survey for Eremothera pygmaea. .......................................................... 14 Table 8. Results of CY 2015 Survey for Erigeron piperianus. .............................................................. 15 Table 9. Results of CY 2015 Survey for Erythranthe suksdorfii. .......................................................... 16 Table 10. Results of CY 2015 Survey for Leymus flavescens. ............................................................... 17 Table 11. Results of CY 2015 Survey for Loeflingia squarrosa. ............................................................ 18 Table 12. Results of CY 2015 Survey for Oenothera cespitosa var. cespitosa. ...................................... 19 Table 13. Monthly Rainfall Totals for Rare Plant Survey Years at Hanford. .......................................... 20 ii HNF-64625 Rev. 0 1.0 INTRODUCTION In 2015, two separate rare plant monitoring efforts occurred on the portion of the Hanford Site managed by the U.S. Department of Energy (DOE) (referred to herein as Central Hanford). 1. Upland plants of conservation concern were inventoried concurrently with efforts to map plant
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