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Sunday, December 21, 2014

Rhodiola wallichiana

Rhodiola wallichiana (Hook.) S.H. Fu
Family: Crassulaceae
Synonyms: Rhodiola wallichiana var. wallichiana, Sedum asiaticum DC. , Sedum crassipes Wall. ex Hook. f. & Thomson, Sedum wallichianum Hook.

Chinese: 粗干景天, 粗茎红景天, 粗茎红景天大株变种, 豺帚
Finnish: Himalajanruusujuuri

Description: Perenial monoecious herb. Rhizome cylindrical, 4-20 cm long, 1.5-3 cm thick with scaly radical leaves on the apical part. Flowering stem 5-12 in each rosette, deciduous, simple, erect, glabrous, 13-30 cm high, 3-6 mm wide at anthesis. Cauline leaves remotely or irregularly crenulate in the upper half, but nearly entire in the lower half, obtuse, glabrous, linear to narrowly ovate, 7.5-30 x 1-6 mm. Inflorescence terminal, compact corymb, bracteate. Bract similar to the cauline leaves. Flowers bisexual, usually 5-merous, rarely 4 or 6-merous, hypogynous, pedicel 1-5 mm long. Calyx 4.5-8.5 x 1-1.7 mm, lobes basally connate, glabrous, entire, round, narrowly triangular to subulate. Petals glabrous, entire, obtuse, elliptic, boat-shaped, 5.5-11 x 1.5-2.5 mm. Stamens 8-12, slightly shorter or longer than the petals, in two whorls, basifixed, epipetalous 7-8 mm long, alternipetalous 7.5-12 mm long. Carpel 7-14 x 1-2 mm, style straight, 2-4 mm long, ovary 5-10 x 1-2 mm, ovules 26-36 per locule. Nectar scale oblong to broadly oblong, 0.8-1.2 x 0.6-0.8 mm. Follicles 7-14 x 1.5-2 mm. Seeds 26-36 per fruit, ellipsoidal, 1-2 x 0.3-0.7 mm.  

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