Perennials; caudex simple or branched (tightly); sparsely to densely pubescent, trichomes (sessile or short-stalked), 4-6-rayed, rays furcate or bifurcate, distinct or slightly fused at base, (sometimes umbonate, tuberculate throughout). Stems few to several from base, decumbent, 0.5-1(-2) dm, (rather stout, sparsely pubescent). Basal leaves: blade elliptic to suborbicular, 1.5-3.5(-5.5) cm, margins entire or shallowly dentate (at base, surfaces densely pubescent, silvery). Cauline leaves (petiolate or distal nearly sessile); blade elliptic to obovate, 0.5-1.5 cm, margins entire. Racemes dense, congested, (few-flowered). Fruiting pedicels (spreading or recurved, sometimes loosely sigmoid), 2-6.5 mm. Flowers: sepals lanceolate, oblanceolate, or narrowly elliptic, 3.8-5 mm, (median pair thickened apically, cucullate); petals narrowly lanceolate to linear, 6-10(-13) mm. Fruits (sessile or substipitate), broadly obcordate, obdeltate, or obcompressed, slightly compressed (angustiseptate), 3-5(-7) mm; valves (not retaining seeds after dehiscence), sparsely pubescent or glabrous, trichomes appressed; replum as wide as or wider than fruit; ovules 8-16 per ovary; style (1.8-)3-6(-7) mm. Seeds slightly flattened, (ellipsoid to suborbicular).
Home