瓦松 wa song

Cotyledon fimbriata Turczaninow, Bull. Soc. Imp. Naturalistes Moscou 17: 241. 1844; C. fimbriata var. ramosissima (Maximowicz) Maximowicz; Orostachys fimbriata var. grandiflora F. Z. Li & X. D. Chen; O. fimbriata var. shandongensis F. Z. Li & X. D. Chen; O. jiuhuaensis X. H. Guo & X. L. Liu; O. ramosissima (Maximowicz) V. V. Byalt; Sedum fimbriatum (Turczaninow) Franchet; S. fimbriatum var. ramosissimum (Maximowicz) Fröderström; S. limuloides Praeger; S. ramosissimum (Maximowicz) Franchet; Umbilicus fimbriatus (Turczaninow) Turczaninow; U. ramosissimus Maximowicz.

Rosette leaves linear, short; appendage white, suborbicular, cartilaginous, centrally spinose, margin fimbriate. Stem leaves linear to lanceolate, 1.9-3 × 0.2-0.5 cm, apex spinose. Flowering stem 10-20(-40) cm. Inflorescence racemose or basally branched and conical, dense, 12-25 × 10-20 cm; bracts linear, apex acuminate; pedicels to 1 cm. Sepals oblong, 1-3 mm. Petals red or white, lanceolate elliptic, 5-6 × 1.2-1.5 mm, base connate for ca. 1 mm, apex acuminate. Stamens shorter than or equaling petals; anthers purple. Nectar scales subquadrangular, apex subemarginate. Follicles oblong, apical beak slender, ca. 1 mm. Seeds numerous, ovoid, minute. Fl. Aug-Sep, fr. Sep-Oct.

Rocks on slopes, house roofs, mossy tree trunks; below 1600 m (to 3500 m in Gansu and Qinghai). Anhui, Gansu, Hebei, Heilongjiang, Henan, Hubei, Jiangsu, Liaoning, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shandong, Shanxi, Zhejiang [Korea, Mongolia, Russia].

This species is used medicinally.