• Scientific Name: Orostachys japonica (Maxim.) A.Berger
• Ref: H.G.A.Engler, Nat. Pflanzenfam. ed. 2, 18a:464. 1930
• Synonyms:
  • Cotyledon japonica Maxim.
  • C. polycephala Makino
  • Orostachys japonica f. polycephala (Makino) H.Ohba
  • O. kanboensis Ohwi
  • O. polycephala (Makino) H.Hara
  • Sedum japonicola Makino
  • S. polycephalum (Makino) Makino
• English Common Name: rock pine
• Chinese Common Name: 晚红瓦松 wǎnhóng wǎsōng, 日本瓦松 Rìběn wǎsōng
• Japanese Common Name: ツメレンゲ [爪蓮華] tsumerenge
• Family: Crassulaceae
• Genus: Orostachys
• Distribution: Rocks on low mountains, along streams. Anhui, E Heilongjiang, Jiangsu, Shandong, Zhejiang [Japan, Korea, Russia].

Rosette leaves narrowly spatulate, 15-30 × 4-7 mm, apex narrowly acuminate, apical spine not cartilaginous. Stem leaves red dotted, linear to linear-lanceolate, 2-6 × 0.3-0.7 cm, apex narrowly acuminate and prickles absent. Inflorescence racemose, dense, 8-20 × 2-5 cm in diam.; bracts resembling stem leaves but smaller. Flowers pedicellate. Sepals ovate, ca. 2 × 1 mm, apex obtuse. Petals white, minutely punctate, lanceolate, ca. 6 × 1.8 mm, apex reddish and rounded. Stamens shorter than petals. Nectar scales subquadrangular, ca. 0.3 mm, apex emarginate. Carpels erect, lanceolate, ca. 6 mm, abruptly tapered toward base. Styles slender, ca. 2 mm. Seeds brown, ca. 1 mm. Fl. Sep-Oct. (Flora of China)