Shrubs, 0.6-2 m tall, bushy; branches erect or arching. Stems 4-lined and ancipitous when young, sooner or later terete; internodes 1-6 cm, shorter than to exceeding leaves. Leaves with petiole 0.5-2(-2.5) mm; blade narrowly elliptic or elliptic-lanceolate or oblong-lanceolate to triangular-ovate, 2.5-6.5 × 1-3.5(-3.8) cm, thickly papery to subleathery, abaxially paler or glaucous; laminar glands dots to rather long streaks; adaxial glands dense or sparse (near midvein) or absent; main lateral veins 3-5-paired, sometimes prominent, tertiary reticulation lax, obscure; base cuneate to rounded-truncate, apex acute to apiculate-rounded. Inflorescence 1-11(-14)-flowered, from 1(or 2) nodes, nearly flat-topped; bracts narrowly lanceolate (upper) to leaflike (lower), persistent. Pedicels 4-10 mm (to 1.3 cm in fruit). Flowers 3-5 cm in diam., stellate to shallowly cupped; buds ovoid-conic to broadly ovoid, apex acute to obtuse. Sepals spreading to outcurving or erect, equal to subequal, narrowly to broadly ovate, 5-10 × 4-6 mm (enlarging in fruit to 1.4 × 1.2 cm), margin entire or distally minutely glandular-denticulate with hyaline margin, apex acute or apiculate to obtuse. Petals golden yellow, not or scarcely tinged red, broadly ovate to oblong, (1.5-)2-2.6 × 1.3-2.2 cm, 2-4.5 × as long as sepals, eglandular, margin entire or eroded-denticulate, apiculus obtuse to rounded or obsolete. Stamen fascicles each with 40-55 stamens, longest 1-1.7 cm, 0.5-0.7 × as long as petals. Ovary narrowly to broadly pyramidal-ovoid, 5.5-9 × 4-5 mm; styles 3.5-7 mm, 0.45-0.85 × as long as ovary, free, suberect, outcurved near apex. Capsule narrowly cylindric-ellipsoid to broadly ovoid, 1.5-2 × 0.8-1.2 cm. Seeds dark chestnut brown, 1-1.5 mm, distally winged, otherwise variably carinate; testa linear-reticulate. Fl. Mar-Jul(-Oct), fr. Jul-Oct. 2n = 36*.