Herbs annual, (0.5-)2-15(-20) cm tall, puberulent or rarely subglabrous. Stems branched basally and above, rarely simple from base, decumbent or erect. Basal leaves not rosulate, finely pinnatisect, rarely simple, withered early, 0.9-5(-8) cm; lateral lobes 1-3 on each side, filiform, to 3.5 cm × 0.2-1 mm, glabrous or sparsely puberulent, flat or margin incurved and lobes appear grooved. Cauline leaves similar to basal. Fruiting pedicels 1-4(-10) mm, slender or stout, straight, puberulent. Sepals oblong-linear to linear, (2.5-)3-4(-5) × 0.5-0.7 mm, erect, apically puberulent. Petals white, later pink, linear or oblanceolate-linear, (4.5-)6-9(-11) × 0.4-0.8(-1) mm; claw 2-3.5 mm. Filaments white, filiform, 2.5-5 mm; anthers oblong, 0.5-0.6 mm. Fruit linear, (1.2-)1.5-4(-5.5) cm × 1.5-2.5(-3) mm, often wider at base, gradually tapered to apex, straight or slightly curved distally; valves puberulent or subglabrous, prominently veined. Seeds yellow or light brown, ovoid or suboblong, 0.6-0.9(-1.2) × 0.4-0.5 mm. Fl. Mar-May, fr. Apr-Jun. 2n = 14.
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A herb. It grows each year from seed. It grows 2-15 cm tall. The stems are branched. The leaves at the base are in a ring. They are divided. The leaves on the stem are also divided
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