Sebaea thomasii Schinz

Procumbent, mat-forming perennial herbs with ascending flowering branches. Leaves up to 2.1 cm long and 1.4 cm broad, elliptic-ovate to ovate-orbicular, acute or rounded, narrowed towards the petiole-like base, more or less crowded towards the base or scattered along the stems. Inflorescence a 1-few-flowered terminal cyme; bracts foliaceous, the lower ones ovate, but becoming progressively smaller and narrower. Calyx of 5 segments, each 9.5-11.5 mm long, 2-2.5 mm broad, lanceolate, acuminate, softly membranous, joined for 0.75-2 mm, keeled or with a thick, very narrow wing. Corolla bright yellow; tube 1.3-2.1 cm long; lobes 0.8-1.1 cm long; 4-6 mm broad, ovate or ovate-oblong, rounded or subacute, clawed. Filaments 0.25-0.75 mm long, inserted 3.5-6 mm below the corolla-sinuses; anthers 2.25-2.75 mm long, each with an oblong-conical, red-brown (when dry) apical gland 0.6-0.75 mm long and mostly with 2 small round basal glands. Style and stigma 2.5-6 mm long; stigma linear-oblong, rarely somewhat clavate, 1.25-2.4 mm long, 2-lobed.