中越十裂葵 zhong yue shi lie kui

Shrubs or subshrubs, perennial, to ca. 0.3 m tall, taproot conic, to 1.5 cm thick; entire plant yellow-brown stellate tomentose or densely gray-yellow stellate puberulent. Stipule filiform or subulate, 2-6 mm, densely stellate tomentose, usually caducous; petiole 0.5-1 cm; leaf blades on proximal part of stem ovate or ovate-elliptic, base broadly cuneate to rounded, margin shallowly sinuate, sparsely serrate, apex obtuse, those on distal part of stem oblong or elliptic. Flowers axillary on upper twigs, solitary or aggregated. Pedicel 3-5 mm. Epicalyx lobes filiform, 10-11, connate at base, 5-8 mm. Calyx cup-shaped or campanulate, ca. 1 cm, lobes long triangular, ca. 6 mm. Corolla campanulate, ca. 3 cm in diam.; petals yellow, reddish when dry, 2-3 cm, abaxially stellate pilose. Filament tube 0.7-2 cm; anthers on distal 1/2, dense, with short filaments. Ovary 6-10-loculed; style branches 6-10, exceeding staminal column, 4-9 mm; stigma capitate. Capsule flattened-globose, ca. 1 cm in diam., tomentose. Fl. Apr-May.

Savannas, sandy soils. Guangdong, Hainan [N Vietnam].