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

110. Oxytropis latibracteata Jurtzev, Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk S.S.S.R. 19: 269. 1959.

宽苞棘豆 kuan bao ji dou

Herbs, 10-25 cm tall, acaulescent, from a simple or branched caudex, clothed with marcescent leaf bases and stip­ules. Stipules ovate to broadly lanceolate, ca. 1.1 cm, mem­branous, with spreading long trichomes, apex acute. Leaves (3-)10-25 cm; leaflets (13 or)15-23, opposite or sometimes alternate; leaflet blades elliptic, narrowly ovate, or lanceolate, 6-29 × 3-5 mm, sericeous. Racemes rather dense, 5-13-flowered or more, with dense black short trichomes; peduncle (4-)6-25 cm, as long as to longer than leaves, sulcate, with dense short trichomes; bracts elliptic, 8-18 × 2-6 mm, papery, sericeous with appressed black short trichomes inter­mixed, base rounded, apex acuminate. Calyx cylindric, (9-)11-13 × ca. 3 mm, with dense black and white short trichomes; lobes subulate to triangular, 1.3-3.5 mm. Corolla bluish purple to pale purple; standard 2.1-2.7 cm, lamina narrowly elliptic, apex rounded; wings 1.7-1.9 cm, lamina obliquely obtriangular, apex rounded or obliquely emarginate; keel 1.6-1.7 cm, beak 1-1.5 mm. Legume sessile, ovoid-ellipsoid, ca. 1.5 × 0.6 cm, leathery, pubes­cent. Fl. and fr. Jul-Aug.

● Sunny slopes, Betula forests, hillsides, alpine steppes, grass­lands, floodplains, among shrubs; 1700-3800 m. Gansu, Hebei, Nei Mongol, Ningxia, Qinghai, Shaanxi, Sichuan, Xinjiang, Xizang.

1 Leaflet blades 0.6-1.7 cm; bracts 8-11 × ca. 2 mm, shorter than calyx; corolla standard ca. 2.1 cm.   110a var. latibracteata
+ Leaflet blades to 2.9 cm; bracts 14-18 × ca. 6 mm, longer than calyx; corolla standard to 2.7 cm.   110b var. longibracteata

Lower Taxa


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