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Annual herb, up to 0.25 m high. Stems decumbent or erect; minutely puberulous. Leaves petiolate and sessile; basal ones rosulate, petiolate; blade 15-75 mm long, pinnately lobed, lobes broad, ± lobulate or dentate or smaller leaves frequently with an obovate or narrowly ovate laciniate-serrate blade, only petiole and upper surface of midrib puberulous; upper leaves usually narrowly obovate, petiolate, margins entire or serrate. Flowers: in terminal, corymbose racemes; nectaries filiform; stamens 2; petals mostly absent, if present, minute. Fruit with pedicels wide-spreading, slightly arcuate; siliculae obcordate or obcordate-ovate, 1.6-2.1 x 1.4-1.8 mm, style just projecting.
Annual herb, 0.20-0.25 m high, low-growing. Stems decumbent or ascending, puberulous. Leaves: basal leaves rosulate, pinnately lobed, lobes lobulate or dentate, smaller leaf blades obovate or ovate-lanceolate, laciniate-serrate, glabrous, petioles puberulous; upper cauline leaves pinnately lobed, narrowly obovate or oblanceolate, serrate to entire, petiolate. Inflorescence a terminal raceme; rachis puberulous. Sepals broadly ovate, green with a broad membranous margins, sometimes tinged purple. Petals absent or rarely present. Nectaries filiform. Fruit a silicula, obcordate or obcordate-ovate.
Sprawling, shortly hairy perennial, up to 250 mm tall, stems minutely hairy. Leaves 15-15 mm long, basal ones rosulate, pinnatifid or deeply cut, upper ones serrate to entire. Flowers subcorymbose, petals 0, nectaries filiform. Fruit ovate, notched, 1.6-2.1 mm long.
Sprawling, shortly hairy perennial to 25 cm. Leaves pinnatifid or laciniate. Flowers subcorymbose, petals 0, nectaries filiform. Fruits ovate, emarginate, 1.6-2.1 mm long.
