Description from
Flora of China
Drosera umbellata Loureiro, Fl. Cochinch. 1: 186. 1790; Androsace saxifragaefolia Bunge; Primula minutiflora Forrest; P. umbellata (Loureiro) Bentvelzen.
Herbs annual or biennial, with numerous fibrous roots. Leaves basal; petiole 1--4 cm, pilose; leaf blade suborbicular to ovate, 5--20 wide, appressed pubescent, base shallowly cordate to subrounded, margin dentate, apex obtuse to rounded. Scapes often many, erect, 4--15 cm, pubescent; umbels 4--15-flowered; bracts ovate to lanceolate, 3.5--4 mm. Pedicel 1--3 cm, elongating to 6 cm in fruit, pubescent and short-stalked glandular. Calyx 3--4 mm, densely pubescent, parted nearly to base; lobes rhomboid-ovate, enlarging and stellately spreading in fruit; veins 3--6. Corolla white, 4--6 mm in diam., with a yellow eye; tube ca. 2 mm; lobes obovate-oblong, 2.5--3 X 1.5--2 mm, apex obtuse. Fl. Feb-Apr. 2n = 18@.
Open grassy areas, roadsides; 100--1500 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hebei, Heilongjiang, Hubei, Hunan, Jiangsu, Jiangxi, Jilin, Liaoning, Nei Mongol, Shaanxi, Shandong, Shanxi, Sichuan, Taiwan, Xizang, Yunnan, Zhejiang [India, Japan, Kashmir, Korea, Myanmar, New Guinea, Pakistan, Philippines, E Russia, Sikkim, Vietnam].