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

29. Oxytropis penduliflora Gontscharow, Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk S.S.S.R. 8: 186. 1940.

蓝垂花棘豆 lan chui hua ji dou

Herbs, 14-33 cm tall, caulescent, with 1 or 2 or sometimes more apparent internodes, arising from a branched superficial or subterranean caudex. Stipules 1-1.2 cm, green, with long trichomes, margin ciliate. Leaves 5-16 cm, 21-31-foliolate; leaflet blades lanceolate to ovate-lanceolate, 3-14 × 2.5-5 mm, with appressed long trichomes, base rounded to acute, margin ciliate, apex acute. Racemes rather lax, 20-30-flowered; pedun­cle (6-)10-15(-17) cm, thick, much longer than leaves, with spreading trichomes and apically with dark brown and white trichomes; bracts linear-lanceolate, 3-7 mm, herbaceous, with long trichomes, margin ciliate, apex acute. Flowers spreading to declined. Calyx broadly cylindric, 8-10 mm, with reddish yel­low or white long trichomes and black trichomes; lobes linear to subulate, ca. 4 mm. Corolla blue; standard 1.3-1.5 cm, lam­ina orbicular-ovate, apex emarginate; wings ca. 1.2 cm, lamina oblong, apex rounded to emarginate; keel ca. 1.1 cm, beak ca. 1 mm. Legume shortly stipitate; body cylindric, 10-15 × 3-4 mm, pendulous, membranous, with spreading black, white, or reddish black short trichomes. Fl. Jun-Jul, fr. Jul-Aug.

Dry hillsides, gravelly areas, alpine meadows; 2000-4100 m. Qinghai, Xinjiang [Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, Uzbekistan].


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