Heliophila monosperma Al-shehbaz & Mumm.

Woody shrublets, erect or trailing. Branches terete, very finely cartilaginous-ridged, the ridges entire or minutely scalloped. Leaves 1-4 cm long, c. 1 mm broad, linear or linear-acicular, acute or mucronate, when dry with fine cartilaginous lines. Racemes terminal or intercalary, few-or many-flowered. Sepals 6 mm long, 1-2.3 mm broad, narrowly oblong to oblong-obovate; the outer 2 cucullate, thickened or shortly horned at the apex; the inner 2 ± inflated. Petals 7-11.5 mm long, 2.3-5 mm broad, oblanceolate to obovate. Filaments 2.5-4.5 mm and 3.1-5.8 mm long. Anthers 1.3-2 mm long. Fruiting pedicles 0-3-1-3 cm long, sharply reflexed. Siliculae 1.2-1.7 cm long, 6-9 mm broad, oval, elliptical or ± obovate, often oblique, pendulous, discoid, margined or narrowly winged, indehiscent, generally 1-seeded; valves membranous, green or purplish-brown, eventually straw-coloured, 1-nerved, net-veined. Seeds 3.5-6 x 2.5-4 mm, oval or broadly oblong, flat.