Ammodaucus leucotrichus Coss., it is an annual, erect. up to25 cm tall, glabrous herb. with striate, short stems from base. Leaves with basally sheathing petioles, dark green, 2-3-pinnatisect into narrowly linear-oblong, less than 1 mm broad. fleshy ultimate segments. Umbels 2-4-rayed, on 1-5 cm long, leaf-opposed peduncles; rays 1-4 cm long, unequal, sub erect at flowering and fruiting. Bracts as many as rays, 1-3.5 cm long, ± sheathing at the base, unipinna tisect in the upper half, with broad ± setulose membranous margins and setulose lobes. Flowers white, 5-10 in each umbellule, on 5-10 mm long, setose. pedieels; braetlets tripartite, shorter to as long as pedieels, membranous margined, acuminate tipped. Petals white, c. 1 mm long, shallowly 2-lobed. Ovary oblong, c. 1 mm long, hairy. Fruit ovoid, 10-12 x 5-6 mm, densely beset with soft pale brown, 2-5 mm long hairs: mericarps compressed dorsally, with 4, hairless secondary ribs between the 5 prominent primary ribs, flattish on innerside.
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