Annual or possibly ephemeral herb, erect to spreading; branches 7–15 cm long, glabrous. Basal leaves bipinnate to pinnatisect; cauline leaves reducing to entire, linear, approximately 1 mm wide. Inflorescence an elongating raceme. Sepals 0.5–1.8 mm long. Petals rudimentary. Sepals 4, median. Stigma sessile. Silicula dehiscent, broadly ovate, 2.5 mm long, 2 mm wide, slightly reticulate, slightly winged; wing terminal forming a very shallow open notch; pedicels to 5 mm long, erect to spreading. Seeds c. 1.25 mm long; radicle incumbent.
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