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

40. Oxytropis sinkiangensis S. H. Cheng ex C. W. Chang, Acta Bot. Boreal.-Occid. Sin. 8: 13. 1988.

新疆棘豆 xin jiang ji dou

Herbs, 10-60 cm tall, caulescent, evidently clump-forming from a superficial caudex. Stems erect or spreading-ascending, with spreading white short trichomes. Stipules triangular-lan­ceolate, 8-11 mm, herbaceous, with appressed trichomes, dis­tinct, apex acuminate. Leaves 5-10 cm, 7-19-foliolate; petiole and rachis adaxially sulcate, with spreading white trichomes; leaflet blades oblong, broadly lanceolate, or oblong-ovate, 1.5-3 × 0.6-1 cm, with appressed white long trichomes, base rounded, apex acute. Racemes elongate and further elongating in fruit, many flowered; peduncle 7-20 cm, as long as or longer than leaves, basally with dense trichomes; bracts subulate, ca. 1.5 mm, membranous, with white long trichomes. Calyx cam­panulate, ca. 4 mm, with spreading dense white long trichomes sometimes mixed with appressed black short trichomes; lobes linear, ca. 1 mm. Corolla yellow; standard 6-7 mm, lamina or­bicular and 4-5 mm wide, apex emarginate; wings ca. 5.5 mm, lamina oblong, apex emarginate; keel ca. 4 mm, beak ca. 0.3 mm. Legume stipitate; stipe ca. 4 mm; body oblong, pendulous, inflated, thickly membranous, vesicular, 1-locular, without a septum, with semispreading white trichomes, beak ca. 2 mm. Fl. Jul-Aug, fr. Aug-Sep.

● Wastelands; 500-1000 m. Gansu, Xinjiang.


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