[Braya alpina var. americana (Hook.) S. Watson, moreBraya alpina var. glabella (Richardson) S. Watson, Braya americana (Hook.) Fernald, Braya arctica Hook., Braya bartlettiana Jordal, Braya henryae Raup, Braya humilis var. americana (Hook.) B. Boivin, Braya humilis var. glabella (Richardson) B. Boivin]
Stems ascending to erect, 0.5-1.7(-2.3) dm. Leaves: blade often somewhat fleshy, to 4 mm wide, margins often entire, sometimes 1 or 2 weak teeth per side. Racemes often loosely elongated in fruit. Fruits oblong to narrowly oblong-lanceoloid, often curved, (0.3-)0.5-1.2(-1.5) cm × (0.8-)1.1-3 (-3.6) mm, 3.5-8.3 times as long as wide; style slender or stout, (0.3-)0.5-1.6(-2) mm. 2n = 56. Flowering Jun-Jul. Barren, usually calcareous soils and gravel, gravel bars, disturbed sites, lake and sea shores, scree slopes, solifluction lobes; 0-3700 m; Alta., B.C., N.W.T., Nunavut, Que., Yukon; Alaska, Colo., Mont., Wyo.; Asia.