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36. Astragalus sect. Uliginosi A. Gray, Proc. Amer. Acad. Arts. 6: 196. 1864.
湿地组 shi di zu
Astragalus sect. Euodmus Bunge.
Plants perennial, herbaceous, with medifixed to asymmetrically bifurcate hairs. Stems long, erect. Stipules free from petiole, vaginate-connate behind stem. Racemes many flowered, with a long peduncle. Bracteoles sometimes present. Calyx shortly tubular. Petals glabrous. Legumes sessile, keeled or rounded ventrally, grooved dorsally, 1-locular to 2-locular; valves thinly leathery.
Seven species: Afghanistan, China, India, Japan, Kashmir, Korea, Mongolia, Pakistan, Russia; C and SW Asia; three species (one endemic) in China.
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| 1 |
Bracteoles present; ovary and legumes densely hairy; legumes nodding. |
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240 A. peduncularis |
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Bracteoles absent; legumes obliquely erect to erect |
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(2) |
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| 2 (1) |
Stem 30-70 cm; leaflets narrowly elliptic, 20-40 × 5-15 mm, glabrous adaxially; calyx teeth 1.5-3 mm; ovary and legumes glabrous. |
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242 A. uliginosus |
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Stem 5-10 cm; leaflets elliptic, 10-25 × 5-12 mm, sparsely hairy adaxially; calyx teeth 4-5 mm; ovary and legumes black hairy. |
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241 A. qitaiensis |
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