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47. Astragalus sect. Leucophysa Bunge, Mém. Acad. Imp. Sci. Saint Pétersbourg, sér. 7. 11(16): 112. 1868.
白泡果组 bai pao guo zu
Plants perennial, herbaceous, with a developed stem; hairs bifurcate. Leaves imparipinnate; stipules free from petiole or very shortly adnate to it, otherwise free. Racemes short, ± capitate, with a distinct peduncle. Bracteoles absent. Calyx campanulate to tubular. Petals glabrous; wing limbs rounded at apex. Legumes sessile, bladderlike inflated, completely or more rarely incompletely 2-locular; valves membranous.
Six species: China, Kazakhstan, Mongolia; one species in European Russia; five species (three endemic) in China.
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1 |
Leaflets in 2 or 3 pairs; petals yellowish; standard ca. 8 mm. |
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311 A. qingheensis |
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Leaflets in at least 5 pairs; petals pink, purple, or violet; standard at least 16 mm |
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(2) |
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2 (1) |
Leaves 10-30 cm; petiole as long as rachis or longer; legumes with a beak 4-10(-14) mm |
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(3) |
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Leaves up to 18 cm; petiole much shorter than rachis; legumes with a beak up to 3 mm |
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(4) |
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3 (2) |
Leaflets in 5-8 pairs, widely elliptic, 4-10 × 3-9 mm; legumes 10-15 mm, with a beak 5-6 mm. |
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313 A. toksunensis |
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Leaflets in 6-14 pairs, elliptic, 10-24 × 6-11 mm; legumes 17-26 mm, with a beak 4-10(-14) mm. |
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314 A. urunguensis |
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4 (2) |
Stems covered with strongly flexuous, ± spreading hairs up to 0.4 mm and sparsely with ± straight, spreading hairs up to 1.5 mm; legumes inflated ovoid, 12-17 mm, 11-14 mm high and 7-8 mm wide, densely and shortly velvety and loosely furnished with spreading hairs up to 1.5 mm. |
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310 A. candidissimus |
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Stems covered with asymmetrically to strongly asymmetrically bifurcate, often flexuous, subappressed to ascending, white hairs ca. 1 mm; legumes globose, 13-15 mm, covered with asymmetrically to strongly asymmetrically bifurcate, tangled, subappressed to ascending, white hairs 1-1.5 mm. |
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312 A. steinbergianus |
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