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FOC | Family List | FOC Vol. 10 | Fabaceae | Oxytropis

87. Oxytropis alpina Bunge, Delect. Sem. Horti Bot. Dorpat. 1840: 8. 1840.

高山棘豆 gao shan ji dou

Oxytropis alpicola Turczaninow; O. frigida Karelin & Kirilov; O. uralensis (Linnaeus) Candolle var. pumila Lede­bour.

Herbs, (6-)10-21 cm tall, caulescent, from a multiheaded caudex with many branches, tufted, clothed with persistent peti­oles and stipules. Stipules ovate to lanceolate, membranous, with appressed white trichomes, adnate to petiole. Leaves (2-)5-17(-19) cm, (19 or)21-37-foliolate; petiole and rachis with appressed sparse white trichomes; leaflet blades lanceo­late-ovate to lanceolate, (4-)7-18 × (1-)2-4 mm, white serice­ous when young but sparsely so later. Racemes 5- to many flowered; peduncle 4-15(-21) cm, as long as to longer than leaves, thick, erect, sulcate, with spreading trichomes; bracts lanceolate to subulate, 1.2-1.5 cm, with white long trichomes. Calyx broadly cylindric, 1-1.2 cm, with spreading white and appressed black trichomes; lobes linear-lanceolate, 3-5 mm. Corolla pale purple; standard (1.6-)1.7-2(-2.2) cm, lamina broadly ovate, apex 2-lobed; wings 1.5-1.7 cm, apex emargi­nate; keel 1.2-1.3 cm, beak ca. 1 mm. Legume sessile, oblong-ovoid, 1.5-3 × 0.5-0.7 cm, thinly leathery, 2-locular, with sparse white and appressed black trichomes, septum wide, apex beaked. Fl. and fr. Jul-Aug.

Hillsides, gravelly areas, alpine areas; ca. 2500 m. Xinjiang [Ka­zakhstan, Kyrgyzstan, Russia, Tajikistan, Turkmenistan, Uzbekistan].


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