圆叶景天 yuan ye jing tian

Sedum alfredii Hance var. makinoi (Maximowicz) Fröderström.

Herbs perennial. Stems basally prostrate and rooting at nodes, apically erect, 15-25 cm. Leaves opposite, pseudopetiolate; leaf blade obovate to obovate-spatulate, 1.7-2 × 0.6-0.8 cm, base tapered and shortly spurred, apex obtuse. Cyme 2-branched, 8-18 cm in diam.; bracts resembling stem leaves but smaller. Flowers sessile, unequally 5-merous. Sepals linear-spatulate, 2-3 × 0.7-0.8 mm, base shortly spurred, apex obtuse. Petals yellow, lanceolate, ca. 4.5 × 1.2 mm, apex obtusely acuminate. Stamens 10; antesepalous ones subequaling petals; antepetalous ones shorter than petals. Nectar scales oblong-spatulate, ca. 0.6 mm. Carpels lanceolate, ca. 5 mm, base connate for ca. 1 mm. Styles ca. 1 mm. Follicles obliquely divergent. Seeds ovoid, small, minutely mammillate. Fl. Jun-Jul.

Shady moist forests in low mountain valleys. Anhui, Zhejiang [Japan].