Sebaea albens (L.F.) Sm.

Erect, annual herbs 4-25 cm high, usually not branched from the base, but branching freely in the upper part. Leaves 0.4-1.5 cm long, 0.3-1.2 cm broad, ovate, acute or rounded, cuneate or subcordate at the base, leathery or thin when dry. Inflorescence a much-branched corymb, usually many-flowered but sometimes reduced to a few cymes; bracts foliaceous, ovate to lanceolate, erect, spreading or recurved. Calyx of 4 segments, each 3-7 mm long, 1-3 mm broad, ovate to elliptic-obovate. rounded on the back and often 3-nerved; the outer ones neither keeled nor winged, the inner often weakly keeled, especially in the upper half; rounded or acute, sometimes with a more or less recurved apiculus, joined for 0.5-1.5 mm. Corolla yellow or white; tube 3.5-6 mm long; lobes 4-7 mm long, 2-3.5 mm broad, elliptic to ovate or obovate, rounded or minutely apiculate. Filaments 0.75-2 mm long, inserted in the corolla-sinuses. Anthers 0.75-2.5 mm long, their tips recurved, each with a sessile or shortly stalked large conical or smaller roundish apical gland. Style and stigma 4.25-7 mm long, with a conspicuous stigmatic swelling; stigma often large, clavate. 2-lobed.