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Glabrate perennial herb, with ∞ flexuous decumbent branches up to 2 dm. long, and somewhat fleshy lvs. Lower lvs 5 cm. long or more, on long petioles, linear-oblong in outline, pinnatifid to pinnate; upper c. 1·5 to 2.5 cm. long, spathulate, narrowed to long or short petiole, irregularly crenate-lobed to almost entire. Racemes up to 5 cm. long, lateral and lf-opposed and terminal with minute fls on spreading pedicels c. 4 mm. long. Sepals ovate, ± 0·5 mm. long; petals shorter, linear, obtuse; stamens 2. Silicles ovate to oval in outline, c. 4 mm. long, c. 2.5 mm. wide, notched, narrowly winged above; style not exceeding notch. Seeds ovoid, compressed, reddish brown, 1-2 mm. long.
Perennial herb, perennating from a rhizome, weak-stemmed, glabrous or hairy. Leaves to 4 cm long, angular-obovate; juvenile leaves succulent, pinnate, sometimes bipinnatifid; margins crenate to dentate, usually with large papillae or scales; bases attenuate. Inflorescence a terminal corymb, elongating at maturity. Sepals to 1 mm long. Petals shorter than sepals, narrow, white. Stamens 2, median. Style equal to notch depth or shorter. Silicula dehiscent, 3.5–4.5 mm long, 2.5–3 mm wide, ovate; wing narrow forming a shallow open notch; pedicels slightly longer than length of silicula, erect to spreading. Seeds 1.5–2 mm long; radicle incumbent.
