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

27. Astragalus longilobus E. Peter, Acta Horti Gothob. 12: 47. 1938.

长萼裂黄耆 chang e lie huang qi

Plants 30-60 cm tall, with hairs 0.5-1 mm. Stems several, 3-6 mm thick, sparsely to loosely covered with ± appressed white or sometimes also black hairs. Leaves 7-10 cm; stipules greenish, 8-20 mm, lowest ± high vaginate-connate behind stem, upper ones mostly narrowly triangular, long acuminate, free, ciliate; petiole short, like rachis sparsely to loosely covered with ± appressed white and black hairs; leaflets in 3-5 pairs, with a short petiolule often furnished with minute globose glands, narrowly ovate to narrowly elliptic, (18-)25-40(-55) × 7-15 mm, abaxially loosely to densely appressed white hairy, adaxially glabrous, apex acute and often minutely mucronulate. Racemes densely many flowered; peduncle 5-7 cm, loosely predominantly black hairy; bracts whitish, linear-acuminate, 8-10 mm, black hairy. Calyx campanulate, 10-14 mm, sparsely to loosely covered with ± appressed white and toward teeth in­creasingly black hairs; teeth subulate, (3-)4-7(-8) mm. Petals yellow; standard widely elliptic to widely obovate, 14-15 × 8-9 mm; wings 13-14 mm; keel 11-13 mm. Legumes with a stipe 5-6 mm, narrowly ellipsoid, 18-22 × 7-8 mm, inflated, acumi­nate at both ends; valves papery, densely covered with short appressed black hairs.

● Subalpine to alpine meadows, grassy slopes, riversides; 3300-4300 m. Gansu, Qinghai, Sichuan.


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