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

45. Oxytropis ochroleuca Bunge, Bull. Soc. Imp. Naturalistes Moscou. 39(2): 6. 1866.

淡黄棘豆 dan huang ji dou

Herbs, 5-30 cm tall, caulescent, tuft-forming, from a multiheaded caudex. Stems green, erect, with 2-4 apparent in­ternodes, with sparse trichomes. Stipules connate as a sheath. Leaves 5-15(-19) cm, 21-33-foliolate; petiole and rachis with spreading trichomes; leaflet blades oblong-lanceolate to broadly elliptic, 8-20(-30) × 2-5(-8) mm, both surfaces green and with sparse trichomes. Racemes ovoid-globose, dense, many flow­ered; peduncle 1/2-2/3 as long as leaves, with sparse white in­curved trichomes and apically mixed with black short tri­chomes; bracts linear, ca. 4 mm, longer than calyx tube, mem­branous, with black trichomes. Calyx broadly cylindric, 7-8 mm, with sparse black trichomes; lobes lanceolate-linear, 3-4 mm. Corolla pale yellow; standard 1.2-1.6 cm, lamina orbicu­lar-ovate, apex 2-lobed; wings 1.1-1.2 cm; keel ca. 1 cm, api­cally spotted, beak very short. Legume stipitate; stipe 1-1.5 mm; body cylindric-ovoid, (1-)1.5-2.5 × 0.4-0.6 cm, pendu­lous, with dense black and white trichomes, adaxial suture deeply grooved, beak apex hooked. Fl. Jun-Aug, fr. Jul-Sep.

Valleys, gravelly areas; 1600-1700 m. Xinjiang [Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, Uzbekistan].


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