Draba micropetala Hook.
Remarks: FNA key went to D. micropetala and D. pauciflora. Best match for leaves and fruit was D. micropetala (but not fruit length).

Alaska: [locality and coordinates withheld; status in Alaska: S1S2 (Imperiled; ACCS)],
Upper edge of moist scree, near snow, <5% vegetation. Other plants and lichens nearby: Polemonium villosissimum, Micranthes calycina, Saxifraga oppositifolia, Minuartia macrocarpa, Thamnolia sp., Cladonia sp., Dactylina arctica. Stereocaulon sp., Bryoria sp.

Dennis Ronsse 2018.44, Jul 19, 2018
UAAH, Accession: 9691