Smelowskia porsildii (W.H. Drury & Rollins) Jurtzev
Annotated by J.M. Vigliotti. Remarks: B.A. Bennett, August 2017

Yukon Territory: Dempster Highway, E of, mountain N of Yakanaw Creek. Elev. 1709 m
64.64084°, -138.31367°
Steep (45-70 degree) slopes, usually just before the crest in loose, small rocks and fine sediment. They were not found in areas with moss or lichen cover, or in areas with much vegetation. Soil at the two sites was thin (0.5 - 2 cm) and was made up of organics, fine and coarse sediment and small rock flakes. Associated vegetation included Saxifraga tricuspidata, Anemone drummondii var. lithophila, Potentilla biflora, P. hyparctica, Saxifraga reflexa, Cryptogramma stelleri, Dryas drummondii, Oxytropis nigrescens ssp. lonchopoda, Senecio cymbalaria, Salix arctica, Carex nardina, Poa glauca, and possibly Draba porsildii, D. nivalis, and Koeleria asiatica. One site had 26 individual plants and the other had 45+ plants. Also seen at 64.64120N, 138.31493W. Spent 7.5 hours walking a series of east to west mountain ridges above Yakinaw Creek and located two separate sites where the plants grew.

J.M. Vigliotti s.n., August 12, 2017
BABY, Accession: BABY-10536