Species in the genus Orostachys:

Orostachys japonica f. polycephala / Yatsugashira
Orostachys japonica / Tsumerenge
Orostachys malacophylla var. Iwarenge / Iwarenge

Orostachys malacophylla var. Iwarenge / Iwarenge イワレンゲ

Orostachys malacophylla var. Iwarenge is a perennial herb growing on rocks, roofs of houses, and the like.; the leaves are pruinose and flatter than another close species, Orostachys japonica, in an oblongly soon shape, 4-6cm long. Flowers are white-green, with tips not too sharp. Bloom time: September-November.