. The Canadian field-naturalist. Natural history. Figure 5. Centaurea cyanus (Drawn by Iljvars Steins). (Yukon Renewable Resources, photo DAO); undu- lating dry hummocky tundra alpine slope, Upper Bonnet Plume River Drainage Site #116, 64°24';N 132°07'54"W, /. Staniforth 00-082, 7 July 2000 (DAO). This species, endemic to arctic and subarctic northwest- ern North America was not included in the rare plants of the Yukon Territory (Douglas et al. 1981) because it was too widespread. The specimens cited above are an exten- sion of the known range in the Territory (Cody 1996) of abou
. The Canadian field-naturalist. Natural history. Figure 5. Centaurea cyanus (Drawn by Iljvars Steins). (Yukon Renewable Resources, photo DAO); undu- lating dry hummocky tundra alpine slope, Upper Bonnet Plume River Drainage Site #116, 64°24';N 132°07'54"W, /. Staniforth 00-082, 7 July 2000 (DAO). This species, endemic to arctic and subarctic northwest- ern North America was not included in the rare plants of the Yukon Territory (Douglas et al. 1981) because it was too widespread. The specimens cited above are an exten- sion of the known range in the Territory (Cody 1996) of about 100 kilometers east and 225 kilometers southeast of sites in the southern Richardson Mountains. Senecio lugens Richards., Black-tipped Groundsel - YUKON: in hummocky PicealSalix forest near river, Wind River, 64°'N 134°'W, B. Bennett 00-347, 2 July 2000 (DAO); in White Spruce forest on moss, Snake River, 64°'N 133°'W, J. Meikle 99-058, 19 July 1999 (Yukon Renewable Resources, photo DAO); undu- lating upper slope, Upper Bonnet Plume River Drainage Site #125, 64°32'45"N 132°50'48"W, J. Staniforth 00-098, 8 July 2000 (DAO). This is a common species throughout much of the Yukon Territory (Cody 1996). The specimens cited above are an extension of the known range in the Territory of about 150 kilometers northeast of the vicinity of Mayo. Sonchus arvensis L. ssp. uliginosus (Bieb.) Nyman, Perennial Sow-thistle - YUKON: roadside overlook- ing Teslin Lake, near Brooks Brook, 60°'N 133°'W, B. Bennett 99-538, 16 Aug. 1999 (DAO). Cody (1996) knew this species, introduced from Europe, from only four localities in the southern part of the Yukon Territory. Cody et al. (1998, 2000) added new sites from Whitehorse and the La Biche areas. The specimen cited above is from about 125 kilometers southeast of Whitehorse. Taraxacum carneocoloratum A. Nels. - YUKON: on ridge top, North Fork Pass, Ogilvie Mountains, Dempster Highway, 64°36'N 138°20
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