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

28. Oxytropis nutans Bunge, Bull. Soc. Imp. Naturalistes Moscou. 39(2): 61. 1866.

垂花棘豆 chui hua ji dou

Oxytropis qiemoensis H. Ohba, S. Akiyama & S. K. Wu.

Herbs, 14-50 cm tall, caulescent, with 1 or more apparent internodes, arising from much-branched caudex, sericeous with long trichomes. Stipules with a linear-lanceolate to triangular free part, with dense white trichomes, basally adnate to petiole, basal ca. 1/3 to most of length connate. Leaves 7-10 cm, 19-41-foliolate; petioles 3-4 cm, shorter than rachis, with spreading dense white trichomes and glands between petiole and rachis; leaflet blades ovate, lanceolate-ovate, oblong-lan­ceolate, or broadly ovate, 5-18 × 2-8 mm, both surfaces with spreading to ascending dense trichomes or sparsely yellow sericeous, base rounded, apex acute. Racemes at first compact but later elongating, 6-12 cm, many flowered; peduncle as long as or slightly longer than leaves, thick, with spreading dense white trichomes and apically mixed with pale yellow and black trichomes; bracts linear to linear-lanceolate, 5-10 mm, with tri­chomes. Flowers spreading-descending. Calyx campanulate, 7-10 mm, with mixed black and white trichomes; lobes linear, 2.5-3(-4) mm. Corolla yellow, bluish purple, or white; standard 1.5-2 cm, lamina ovate, apex emarginate; wings oblong, 1.4-1.6 cm, apex 2-lobed; keel 1.2-1.3 cm, beak (0.5-)2.5-3 mm. Legume stipitate; stipe ca. 2 mm; body oblong-ovoid to nar­rowly cylindric, 1.4-1.8 × 0.4-0.5 cm, pendulous, thickly mem­branous, 1(or 2)-locular, densely black sericeous, apex acute. Fl. May-Jul, fr. Jun-Jul.

Valleys, forest margins, gravelly subalpine areas; 2500-4100 m. Xinjiang [Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, Uzbeki­stan].


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