Sebaea zeyheri Schinz

Erect annual herbs, slender or rather stout, simple or branched from the base, 5-25 cm high. Leaves 2-12 mm long, 2-10 mm broad, ovate to suborbicular, acute to obtuse, the lower leaves more or less crowded, but not in a rosette. Inflorescence corymbose or reduced to a few cymes, lax or subdense; bracts ovate-lanceolate to lanceolate, acute or acuminate. Calyx of 5 segments, each 2-4.5 mm long, 0.5-1.75 mm broad, lanceolate to elliptic or oblong, acute to acuminate, the sides hyaline, or somewhat opaque, joined for 0.25-0.75 mm, winged; the wing up to 1.75 mm broad, broadest at the middle or near the base, often distinctly veined. Corolla yellow; tube 2.5-4.75 mm long; lobes 1.5-4 mm long, 0.5-2 mm broad, ovate to ovate-oblong or elliptic, obtuse or acute, sometimes apiculate. Filaments 0.25-0.75 mm long, inserted in the corolla-sinuses; anthers 0.5-0.75 mm long, each with a small, stipitate apical gland or sometimes apparently eglandular. Style and stigma 1-3.75 mm long; stigma ligulate, 2-lobed, together with the confluent swelling as long as or longer than the rest of the style.