CRENULATA (Hooker f. & Thomson) Ohba, 1976
Synonyms :
Sedum crenulatum Hooker f. & Thomson (1858)
Sedum rotundatum Hemsley (1896) / Sedum bupleuroides var. rotundatum (Hemsley) Fröderström (1930) / Rhodiola rotundata (Hemsley) S.H.Fu (1965)
Sedum rotundatum var. oblongatum C.Marquand & Shaw (1929)
Sedum euryphyllum Fröderström (1931) / Rhodiola euryphylla (Fröderström) S.H.Fu (1965)
Sedum megalanthum Fröderström (1935)
Sedum megalophyllum Fröderström (1942) / Rhodiola megalophylla (Fröderström) S.H.Fu (1965)
Section Rhodiola
Distribution : Nepal, Sikkim, Bhutan, Tibet, China (Qinghai, Sichuan, Yunnan), tickets, grassland slopes, schist on mountain slopes, rocky places, rock crevices, 2800 - 5600 m.
Description (according to H. Ohba in IHSP, 2003) :
Dioecious, to 21 cm taIl.
Rhizomes thick, subcylindrical, 2 - 2.5 cm in diameter.
Flowering stems usually fastigiate, robust, 7 - 9 mm in diameter, glabrous, waxy yellowish-green or pinkish, later turning ruddy-brown, lower parts remaining for 1 year after fruiting and becoming dark purplish-brown, often glossy.
Leaves petiolate, petioles 0.8 - 2 x 1.7 - 2 mm in diameter, ± compressed, lamina glabrous, widely elliptic, elliptic or oblong-elliptic, 10 - 33 x 5.5 - 17 mm, tip round, base round or obtuse, margin minutely crenulate to erose, rarely nearly entire.
Inflorescences 20- to 40-flowered, dense, compact, 1.5 - 2 x 1.5 - 2.5 cm in diameter, pedicels glabrous, 3 - 5 mm.
Flowers : Calyx 4 - 9 mm, sepals 2.6 - 6 mm, linear to linear-elliptic, petals oblong-ovate or obovate to angularly obovate, 4.5 - 7 mm, bright crimson or reddish-purple, stamens slightly longer than the petals, anthers purplish-red.
Flowering time : June - July.