延龄草 yan ling cao

Trillium morii Hayata; T. tschonoskii var. himalaicum H. Hara; T. tschonoskii f. morii (Hayata) Yamamoto; T. tschonoskii var. morii (Hayata) Masamune.

Plants 15--50 cm tall. Rhizome stout, abbreviated. Stems tufted. Leaves sessile, rhombic-orbicular to broadly rhombic, 6--15 × 5--15 cm. Peduncle 1--4 cm. Flowers 3--4 cm wide. Outer tepals green, narrowly ovate to ovate-lanceolate, 1.5--2 cm × 5--9 mm, herbaceous; inner ones white, rarely pale purple, ovate-lanceolate, 1.5--2.2 cm × 4--6(--10) mm. Stamens ca. 2/5 as long as tepals; filaments 4--5 mm; anthers 3--4 mm, with slightly convex connective apically. Ovary conical-ovoid, 7--9 × 5--7 mm; stigma rather thick. Berry black-purple, globose, 1.5--1.8 cm in diam., many seeded. Fl. Apr--Jun, fr. Jul--Aug. 2 n = 20.

Forests, moist places along ravines, shady and rocky places on hillsides; 1000--3200 m. Anhui, Fujian, Gansu, Hubei, Shaanxi, Sichuan, Taiwan, Xizang, Yunnan, Zhejiang [Bhutan, Japan, Korea, Myanmar, Sikkim].

This is a vulnerable species in China.