7.
Braya thorild-wulffii
Ostenfeld, Meddel. Grønland. 64: 176. 1923.
Braya pilosa
Hooker subsp.
thorild-wulffii
(Ostenfeld) V. V. Petrovsky;
B. purpurascens
(R. Brown) Bunge ex Ledebour subsp.
thorild-wulffii
(Ostenfeld) Hultén;
B. purpurascens
var.
thorild-wulffii
(Ostenfeld) B. Boivin
Plants
scapose; densely pubes-cent throughout or glabrous, trichomes simple and 2-forked.
Stems
simple or few to several from base, decumbent to prostrate or, sometimes, ascending, (unbranched), (0.3-)0.5-0.9(-1.4) dm.
Basal leaves:
blade spatulate to linear-spatulate, (0.5-)1-3(-4) cm × 1-4 mm, base (membranous), broadly expanded near point of attachment, margins entire, (ciliate, trichomes long, mostly simple), apex obtuse, often with tuft of hairs.
Cauline leaves:
0 or 1 (or a leaflike bract subtending proximalmost pedicel).
Fruiting pedicels
divaricate to erect, 1.5-4 mm.
Flowers:
sepals 2-3.5 × 1-2 mm; petals white to purplish, (narrowly spatulate), 2-3.7 × 1-1.5 mm, (claw and blade not differentiated), apex rounded; filaments 2-2.5(-3) mm; anthers ovoid, 0.4-0.6 mm.
Fruits
ovoid to globose, not torulose, (0.4-)0.5-0.8(-1) cm × (2.5-)3-5 mm; valves densely pubescent or glabrous, trichomes 2-forked and simple; septum margin not expanded, or not basally; ovules 16-30 per ovary; style obsolete to 0.7(-1) mm; stigma strongly 2-lobed or entire.
Seeds
biseriate, oblong, (1.1-) 1.2-1.4(-1.5) × (0.5-)0.7-0.8(-1) mm.
Subspecies 2 (2 in the flora): n North America.
