Sebaea scabra Schinz

Erect annual herbs 6-20 cm high, simple or branched from the base. Leaves up to 1-5 cm long and 1 cm broad, ovate-cordate or nearly suborbicular-ovate, acute or subacute. Inflorescence few-many-flowered; bracts ovate-lanceolate, acuminate. Calyx of 5 segments, each 5-8 mm long, 1.5-2 mm broad, oblong-lanceolate to oblong-elliptic, acuminate, the sides membranous opaque, brittle when dry, joined for 0.5-0.75 mm, with a semi-cordate, strongly veined keel-wing which is up to 2.5 mm broad near the base, the older ones often with scabrid-papillose margins. Corolla yellow; tube 6.5-7 mm long; lobes 6.5-11 mm long, 2.5-6 mm broad, oblanceolate-oblong to obovate, rounded, often apiculate. Filaments 0.5-1 mm long, inserted in the corolla-sinuses; anthers 2-2.5 mm long, their tips recurved, each with a large oblong apical and 2 small, stipitate, basal glands. Style and stigma 5-6.5 mm long with a stigmatic swelling near the base; stigma large, clavate, 2-lobed.