Description from Flora of China
Primulina sinensis J. D. Hooker.
Petiole with wide, undulate marginal wings, 2.5-14 X 0.4-1.2 cm, sparsely puberulent; leaf blade broadly ovate, 5-12 X 4-12.5 cm, adaxially appressed puberulent, abaxially sparsely puberulent, margin deeply lobed, sometimes undulate, lobes occasionally toothed, apex broadly acute to obtuse, subpalmately veined; lateral veins 2 or 3 on each side of midrib. Peduncle 7-11 cm, puberulent; bracts narrowly lanceolate, 4-10(-15) X ca. 1 mm. Calyx 4-6.5 mm; tube to 1 mm; lobes narrowly triangular, 3-5.5 X 0.8-1.5 mm, puberulent. Corolla tube ca. 9 X 3 mm; limb spreading, ca. 1.6 cm in diam.; adaxial lip ca. 7 mm; abaxial lip ca. 9 mm, all lobes ovate, 7-9 mm. Stamens glabrous; filaments 0.8-1.4 mm; anthers ca. 1.5 mm; staminodes 0.2-0.3 mm. Pistil 2.6-5.8 mm, puberulent. Style 1-2 mm. Capsule 3.2-6 mm. Fl. Aug-Oct.
The leaves of Primulina have the odor of tobacco.
* Stony, riverside cliffs; 100-300 m. N Guangdong (Lian Xian, Yangshan Xian).