Heliophila arenosa Schltr.

Slender annual herbs 10-25 cm high, simple, erect or with several ascending stems. Stems generally glabrous, but occasionally some plants puberulous in all vegetative parts. Leaves pinnately 3-7-lobed, the lobes linear or linear-filiform, short or long. Racemes terminal, lax. Pedicels glabrous or sparsely puberulous, in fruit wide-spreading or ascending, 0.3-1.2 cm long. Sepals 3.5-4.5 mm long, narrowly oblong; outer 2 cucullate; inner 2 with membranous margins. Petals 5-8 mm long, 2-2.8 mm broad, oblanceolate or narrowly obovate, subacute, with a small, sometimes obsolete appendage. Filaments 2.9-3.6 mm and 3.3-4 mm long; the 2 short ones with small appendages or without. Anthers 0.8-1 mm long. Ovary linear; ovules 20-40. Fruits 3-5 cm long, 1-1.5 mm broad, linear with straight margins; valves flat, 1-or obscurely 3-nerved; style 1.5-6.5 mm long, straight, cylindrical or slightly swollen.