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New Records of Vascular Plants in the Yukon Territory V

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New Records of Vascular Plants in the Yukon Territory V New Records of Vascular Plants in the Yukon Territory V WILLIAM J. C ODY 1, C ATHERINE E. K ENNEDY 2, B RUCE BENNETT 2, and JENNIFER STANIFORTH 2. 1 National Program on Environmental Health, Agriculture and Agri-Food Canada, Research Branch, Central Experimental Farm, Ottawa, Ontario K1A 0C6 Canada 2 Department of Environment, Government of Yukon, Box 2703, Whitehorse, Yukon Y1A 2C6 Canada William J. Cody, Catherine E. Kennedy, Bruce Bennett, and Jennifer Staniforth. 2003. New records of vascular plants in the Yukon Territory V. Canadian Field-Naturalist 117(2): 278-301. Based on field reconnaissance in 2000 and 2001 throughout Yukon but particularly in the areas of the Upper Bonnet Plume River, Wind River, Eagle Plains and Vuntut National Park, information is provided on geographically significant plant occur- rences. Three native taxa, Draba kananaskis, Hieracium albiflorum and Prunella vulgaris ssp. lanceolata and five introduced taxa, Alopecurus geniculatus , Dactylis glomerata, Elymus junceus, Lotus corniculatus, and Verbena hastata are reported new to the known flora of the Yukon Territory. Signifigant range extensions for 190 native and 24 introduced taxa are included. Maianthemum dilatatum is excluded from the Yukon flora. Key Words: Vascular plants, Yukon Territory, flora, new records, range extensions, phytogeography. Since the writing of New Records of Vascular Plants The new native species are all rare (as defined by in the Yukon Territory IV (Cody et al. 2002), a consid- Douglas et al. 1981). For convenience in this paper the erable number of plant specimens have been submit- Herbarium of the Yukon Department of Environment ted to Cody for identification and confirmation. The (formerly Yukon Department of Renewable Resources) major submissions include the following locations has been given the acronym YUKH. and collectors: (1) Vuntut National Park by Bruce The taxa addressed in the body of this paper appear Bennett in connection with habitat inventories done first in a synoptic list by Yukon status in alphabetical for the National Park Service; (2) Lands adjacent to order. The taxa are then discussed in taxonomic order, the Wind River by Bruce Bennett partially funded by as presented in the Flora of the Yukon Territory with the Canadian Parks and Wilderness Society; (3) Lands citation of specimens and other pertinent information. adjacent to the Upper Bonnet Plume River near the Common names follow Cody (1996) and Douglas et border of the Northwest Territories by Jennifer Stani- al. (1984-2001). forth while documenting vegetation for Yukon Renew- able Resources Department; (4) Southern part of the Synoptic list by Yukon Status Yukon Territory by Rhonda Rosie for the Yukon Native taxa new to the Yukon Territory (3) Territory Government Parks Branch; (5) Peel River Draba kananaskis Plateau and Richardson Mountains by Rhonda Rosie Hieracium albiflorum with support from the Canadian Parks and Wilderness Prunella vulgaris ssp. lanceolata Society; (6) Richardson Mountains by Greg Brunner Introduced taxa new to the Yukon Territory (5) during a vegetation analysis required by the Canadian Alopecurus geniculatus Parks and Wilderness Society; (7) Kluane National Dactylis glomerata Park area by Phil Caswell for the National Park Service Elymus junceus as part of ongoing botanical inventories; (8) Southern Lotus corniculatus Yukon at several former mine sites by Stu Withers in Verbena hastata connection with reclamation of vegetation and soil Range Extensions of Native Taxa within the stabilization; (9) Trout Lake area in Ivavik National Yukon Territory (190) Park by Jennifer Line while undertaking taxonomic Aconitum delphinifolium ssp. paradoxum studies of Tofieldia . Adoxa moschatellina This paper serves to further update the Flora of the Agrostis exarata ssp. Yukon Territory (Cody 1996) and Flora of the Yukon Agrostis mertensii mertensii Agrostis scabra var. geminata Territory, Second Edition (Cody 2000) along with other ssp. records recently published (Cody et al. 1998, 2000, Alnus crispa crispa Alnus incana ssp. tenuifolia 2001, 2002). The floristic information presented earlier Andromeda polifolia and updated here is essential for biological research and Anemone multifida ongoing work relating to agriculture, forestry, sustain- Antennaria rosea ssp. confinis able resource management and wildlife management. Aquilegia formosa With additions of three native and five introduced spe- Arabis boivinii cies reported here the flora now includes 1171 species. Arabis codyi 278 2003 CODY , K ENNEDY , B ENNETT , AND STANIFORTH : V ASCULAR PLANTS IN THE YUKON V 279 Arabis holboellii var. retrofracta Dryopteris expansa Arabis kamtschatica × Elyhordeum macounii Arnica angustifolia ssp. attenuata Elymus glaucus Arnica chamissonis ssp. chamissonis Elymus macrourus Arnica griscomii ssp. frigida Elymus trachycaulus ssp. andinus Artemisia dracunculus Elymus trachycaulus ssp. glaucus Aster modestus Elymus trachycaulus ssp. novae-angliae Astragalus bodinii Elymus trachycaulus ssp. subsecundus Astragalus tenellus Elymus trachycaulus ssp. trachycaulus Betula neoalaskana Elymus trachycaulus ssp. violaceus Betula occidentalis Epilobium hornemannii Betula papyrifera Epilobium palustre Bidens cernua Equisetum variegatum ssp. variegatum Calamagrostis canadensis ssp. canadensis Eriophorum brachyantherum Calamagrostis canadensis ssp. langsdorfii Eriophorum callitrix Calamagrostis purpurascens var. purpurascens Eriophorum scheuchzeri Calamagrostis stricta ssp. inexpansa Eritrichium splendens Cardamine umbellata Erysimum cheiranthoides Carex arcta Festuca lenensis Carex atherodes Festuca richardsonii Carex atrofusca Festuca rubra Carex bicolor Fragaria virginiana ssp. glauca Carex bonanzensis Galium trifidum Carex brunnescens Gymnocarpium dryopteris ssp. dryopteris Carex buxbaumii Hedysarum boreale ssp. mackenzii Carex capillaris ssp. capillaris Hierochloe alpina ssp. alpina Carex concinna Iris setosa ssp. interior Carex deflexa Juncus balticus var. littoralis Carex eleusinoides Juncus triglumis ssp. albescens Carex flava Kalmia polifolia Carex franklinii Kobresia simpliciuscula Carex garberi ssp. bifaria Lappula occidentalis Carex glacialis Leptarrhena pyrolifolia Carex magellanica ssp. irrigua Lesquerella arctica ssp. arctica Carex media Lesquerella calderi Carex microglochin Lloydia serotina Carex obtusata Lycopodium alpinum Carex pachystachya Lycopodium clavatum var. monostachyon Carex phaeocephala Lycopodium complanatum Carex rostrata Menyanthes trifoliata Carex viridula Mimulus guttatus Carex williamsii Minuartia dawsonensis Castilleja pallida var. caudata Minuartia elegans Cerastium arvense Minuartia obtusiloba Ceratophyllum demersum Minuartia yukonensis Chrysanthemum integrifolium Orobanche fasciculata Cicuta maculata var. angustifolia Osmorhiza depauperata Cinna latifolia Oxytropis campestris ssp. roaldii Circaea alpina ssp. alpina Oxytropis nigrescens ssp. nigrescens Comandra umbellata ssp. pallida Parnassia fimbriata Cystopteris fragilis Pedicularis lanata Cystopteris montana Phalaris arundinacea Delphinium glaucum Phlox hoodii Descurainia sophioides Pinus contorta ssp. latifolia Draba albertina Poa leptocoma Draba borealis Poa porsildii Draba cana Poa pratensis ssp. alpigena Draba cinerea Poa secunda ssp. secunda Draba incerta Polemonium acutiflorum Draba macounii Potamogeton filiformis var. borealis Draba porsildii Potamogeton vaginatus Draba scotteri Potentilla nivea Dryas crenulata Primula egaliksensis Dryas hookeriana Puccinellia deschampsioides 280 THE CANADIAN FIELD -N ATURALIST Vol. 117 Puccinellia nuttalliana Plantago major Pyrola minor Poa compressa Ranunculus aquatilis var. eradicatus Poa trivialis Ranunculus eschscholtzii Polygonum achoreum Ranunculus flammula Polygonum aviculare Ranunculus pedatifidus ssp. affinis Puccinellia distans Rosa woodsii Senecio vulgaris Rubus pedatus Sonchus asper Rubus pubescens Spergularia rubra Rumex acetosa ssp. alpestris Stellaria media Salix alaxensis ssp. longistylis Trifolium pratense Salix arbusculoides Comments on a Taxon excluded from the Yukon Salix arctica Territory (1) Salix arctophila Salix commutata Maianthemum dilatatum Salix fuscescens Salix hastata LYCOPODIACEAE Salix niphoclada Lycopodium alpinum L., Alpine Club-moss – YUKON : Salix polaris undulating alpine midslope, Upper Bonnet Plume Salix pseudomonticola River Drainage, Site #120, 64°24’45”N 132°07’1”W, Salix richardsonii J. Staniforth 00-078, 4-12 July 2000 (DAO); strongly Salix rotundifolia ssp. rotundifolia ssp. mounded-graminoid/moss/lichen pediment with frost Sanguisorba canadensis latifolia boils, Upper Bonnet Plume River Drainage Site #131, Schizachne purpurascens Scirpus caespitosus ssp. austriacus 64°31’19”N 132°51’39”W, J. Staniforth 00-092, 4-12 Senecio indecorus July 2000 (DAO). Senecio sheldonensis The specimens cited above are an extension of the known Senecio streptanthifolius range in the Territory of about 175 kilometers east of a site Senecio tundricola mapped by Cody (1996) west of longitude 135°W. Sibbaldia procumbens Lycopodium clavatum L. var. monostachyon Hook. & Silene acaulis ssp. acaulis ssp. Grev., Common Club-moss – YUKON : low damp area Silene involucrata involucrata beside the water, WNW end of Trout Lake, 68°49’27”N Silene taimyrensis Solidago canadensis var. salebrosa 138°45’8”W, J. M. Line 2000-81 , 28 July 2000 (DAO). Solidago multiradiata The specimen cited above is the northernmost yet found Sparganium minimum in the Territory. It is an extension of about 60 kilometers Stellaria borealis north of a site mapped
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