Heliophila pectinata Burch.

Annual herbs, often dwarf and delicate, 5-30 cm high, simple or branched; stems minutely papillate-puberulous, sometimes subglabrous. Leaves up to 5 cm long, pinna-tipartite with up to 5 pairs of lobes, but usually smaller and with fewer lobes, membranous, each subtended by 2 minute stipules; lobes filiform or flat, up to 2 mm broad. Racemes many-flowered, lax. Pedicels 1.5-3.5 mm long in flower, erect; 3-5 mm long in fruit, recurved or reflexed; each subtended by 2 minute bracts. Sepals 1-3-2 mm long, 0.5-1 mm broad, narrowly oblong, semi-persistent; the outer 2 cucullate with a membranous margin, sometimes slightly thickened at the apex; the inner 2 with broad membranous margins. Petals 1.5-3 mm long, 0.5-0.8 mm broad, narrowly elliptic to broadly oblanceolate, clawed, only rarely with a very small appendage. Filaments 1-1.8 mm long, sometimes subequal. Anthers 0.4-0.5 mm long. Ovary narrowly oblong; style short, stigma capitate; ovules 10-16, Fruits 0.8-2.5 cm long, 0.8-1.5 mm broad, linear, the margins almost straight; valves flat, 1-3-nerved, glabrous or often finely puberulous; style 0.5-1.8 mm long sometimes slightly swollen. Seeds 0.9-1.1 x 0.7-0.8 mm, oval, very narrowly margined.