Micranthes porsildiana (Calder & Savile) Elven & D.F. Murr.
[= Micranthes nelsoniana var. porsildiana]

Alaska: [locality and coordinates withheld; status in Alaska: S2 (Rare; ACCS)],
Moist rocky north facing slope, < 10% vegetation. Just below snowfield. Other plants and lichens nearby: Micranthes pacifica, M. ferruginea, Saxifraga bronchialis ssp. funstonii, S. hyperborea, Carex sp., Thamnolia sp. Largest leaves 2.0 to 2.2 cm wide, cilia sparse and scruffy hairs with purple bands. Top surface very sparse thin white hairs (not septate). Bottom with very few long thin septate hairs. Inflorescence hairs tangled and distinctly septate, clear with purple bands.

Dennis Ronsse 2018.48, Aug 22, 2018
UAAH, Accession: 12003