Dasiphora davurica
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Dasiphora davurica |
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The Dasiphora davurica (Syn .: Potentilla glabra Lodd. Called), and Bare finger shrub is a species of the genus Dasiphora in the family of the rose family (Rosaceae).
description
Vegetative characteristics
Dasiphora davurica is a shrub that reaches heights of 0.3 to 2, rarely up to 3 meters. The bark of young twigs is sparsely hairy, while older twigs are grayish brown and peel off.
The alternate leaves are arranged in a petiole and a leaf blade. The leaf blade is pinnate in pairs with 4 or 6 leaflets. The leaflets are elongated with a length of 0.5 to 1.2 centimeters and a width of 4 to 8 millimeters, obovate-elliptical or ovoid-elliptical with a wedge-shaped or rounded base and descending. The outermost pair of leaflets is fused with the rhachis leaf . The top and bottom are sparsely hairy, silky hairy or bald. The leaflets are entire, flat or slightly rolled up and blunt or pointed. The stipules are thinly skinned, sparsely haired or almost glabrous.
Generative characteristics
The flowering period extends from May to November. One to several flowers are arranged terminally on individual branches. The flower stalk is long, thin and hardly hairy.
The hermaphroditic flowers are 1.5 to 2.5 centimeters in diameter and are radially symmetrical and five-fold. The segments of the outer calyx are lanceolate, obovate-lanceolate or ovate and shorter or almost as long as the sepals. The sepals are egg-shaped, pointed or prickly. The five free petals are white, obovate with a rounded upper end.
The achenes are hairy.
Occurrence
Dasiphora davurica occurs in Korea , Mongolia , Russia and the Chinese provinces of Anhui , Gansu , Hebei , Hubei , Nei Mongol , Qinghai , Shaanxi , Shanxi , Sichuan and Yunnan . In China it thrives in forests, forest edges, thickets, meadows, embankments, alpine valley slopes and gorges at altitudes of 1200 to 4200 meters.
supporting documents
- Li Chaoluan (Li Chao-luang), Hiroshi Ikeda, Hideaki Ohba: Potentilla Linnaeus : Potentilla glabra Loddiges , p. 293 - online with the same text as the printed work , In: Wu Zheng-yi, Peter H. Raven (ed.): Flora of China , Volume 9 - Pittosporaceae through Connaraceae , Science Press and Missouri Botanical Garden Press, Beijing and St. Louis, 2003, ISBN 1-930723-14-8 .
- Dasiphora davurica in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved August 29, 2017.
