Dasispermum tenue (Sond.) Magee & B.-e.van Wyk

Sprawling or suberect, sympodial, annual herbs, 0.04-0.3 m tall. Stems herbaceous, immaculate, usually well-branched at base; branches decumbent or ascending, not sprouting from the nodes. Leaves 30-95 x 10-35 mm, 2-pinnate, herbaceous to very slightly coriaceous; ultimate leaflet segments linear-oblong, 2-7 x < 1 mm, laminate, green, margins entire, venation visible. Petioles 15-50 mm long, slightly scabrid, green. Umbels sessile to subsessile on peduncles <4 mm long; involucral bracts 0; rays 3 to 6, 5-20 mm long, scabrid; involucel bracts 0 (to 4), linear to narrowly ovate, coriaceous, acute, margins not membranous, glabrous; raylets 4 to 9, 2-5 mm long, scabrid. Flowers with petals 0.4-0.6 x 0.4-0.6 mm, truncate to shallowly emarginate, papillose; ovary scabrid; styles not markedly elongating in mature fruit, 0.2-0.3 mm long, remaining erect or becoming reflexed and extending almost up to base of stylopodium. Fruit 1.7-2.2 x 1.7-2.0 mm, broadly elliptic to rotund and convex in lateral view, base obtuse; mericarps homomorphic; median and lateral ribs as well developed as marginal ribs, prominent, cartilaginous, dorsal surface with slightly fibrous ridges, scabrid; marginal ribs parallel to very slightly concave in lateral view.