单花遍地金(原亚种) dan hua bian di jin (yuan ya zhong)

Hypericum bachii H. Léveillé; H. mairei H. Léveillé (1915), not H. Léveillé (1912); H. monanthemum var. nigropunctatum Franchet.

Plants erect. Stems terete. Leaves sessile or subsessile, 10-25(-35) × 8-15(-25) mm, never scalelike, subpapery, abaxially sometimes slightly glaucous, inframarginal glands black, base rounded to broadly cuneate. Inflorescence 1-5(-7)-flowered. Pedicels 1-2.5 mm. Flowers 12-25 mm in diam. Sepals 5, subequal, 4-7 × 1.5-3 mm, margin glandular-ciliate to subentire. Petals 5, 8-15 mm × 2.5-4.5 mm, ca. 2 × as long as sepals. Stamens 20-45. Styles 0.6-1 × as long as ovary.

Clearings in forests and bamboo forests, grassy slopes, streamsides; 2900-3900 m. W Sichuan, SE Xizang, Yunnan [Bhutan, NE India (Sikkim), N Myanmar (Kachin), Nepal].