Stems (0.3-)0.4-1.1(-1.2) dm. Basal leaves: petiole not differentiated from blade, about as long as blade; blade linear to narrowly oblanceolate, 1.1-4(-5) mm wide, base attenuate. Cauline leaves (2 or)3-7(-9). Racemes lax or slightly compact. Fruiting pedicels horizontal or subhorizontal, forming an angle more than 70º with rachis. Flowers: petals white, (3.4-) 3.6-6 × 1-2 mm. Fruits only slightly winged, obovate or, rarely, elliptic, (4-)5-8(-9.5) × (2.5-) 2.7-4(-4.5) mm, 1-2 times as long as wide, apex obtuse, truncate, or emarginate; style (0.5-)0.8-2(-2.5) mm. Seeds 2-8 per fruit. 2n = 14, 28.
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