Perennial, mat-or cushion-forming, rhizomatous herb with persistent old leaf bases. Stems up to 3.5 cm long, sparingly branched, puberulent, and with a few leaf-opposed, up to 1 cm long spines. Leaves coriaceous, sessile; basal ones in a rosette, sparsely puberulent, bipinnatifid with up to 7 pairs of lobes, acute, without spines; cauline leaves obovate, entire or acutely serrate. Racemes axillary at the base of spines with 1-3 minute flowers, in fruit hardly elongating, up to 10 mm long; pedicels 2-3 mm long, patent, sparsely pubescent. Sepals green with hyaline margins, c. 1 mm long. Petals white, shorter than sepals, 0.6-0.8 mm long. Stamens 2 (median), with 4 linear nectaries, one on either side of each stamen. Ovary elliptic with inconspicuous style. Siliculae in outline broadly ovate to obovate, 3-3.5 by 2.5-3 mm, with very narrow wing in upper third, shallowly emarginate; style very short, stigma sessile or nearly so. Seeds wingless, dark brown, 1.5-2 by 0.8-1.3 mm.
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