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3. Oxytropis sect. Polyadena Bunge, Mém. Acad. Imp. Sci. Saint Pétersbourg, sér. 7. 22(1): 152. 1874.
多腺棘豆组 duo xian ji dou zu
Herbs, acaulescent, glandular. Leaves imparipinnate; leaflets verticillate. Racemes 3- to many flowered; peduncle 2-25 cm, shorter to longer than leaves. Corolla bluish purple, purple, or yellow. Ovary sessile or shortly stipitate, with 15-35 ovules. Legume usually inflated, 1- or ± 2-locular.
Seven species: China, Himalayas, Mongolia, Russia; five species (two endemic) in China.
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| 1 |
Corolla pale or dirty yellow, standard apex shortly acuminate; stipules hard. |
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5 O. muricata |
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Corolla various purplish, bluish, or violet colors (rarely yellow or white in O. microphylla), standard apex rounded; stipules herbaceous or membranous |
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(2) |
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| 2 (1) |
Racemes (6-)8-20-flowered; legume without glands |
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(3) |
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Racemes 3-6-flowered; legume glandular |
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(4) |
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| 3 (2) |
Stipules (10-)12-15 mm; calyx 10-13 mm, lobes 2-4 mm; corolla standard 1.9-2.5 cm; legume subglobose, bladderlike inflated, membranous. |
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6 O. trichophysa |
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Stipules 3.2-4.3 mm; calyx ca. 7.5 mm, lobes ca. 1 mm; corolla standard ca. 1.7 cm; legume lanceolate-ovoid, not bladderlike inflated, leathery. |
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7 O. pseudomyriophylla |
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| 4 (2) |
Plants (4-)5-15 cm tall; stipules conspicuously white pilose and long persistent; leaflets in (10-)13-27 whorls; leaflet blades 2-3 mm; corolla standard 1.9-2 cm; legume falcately cylindric. |
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8 O. microphylla |
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Plants 22-35 cm tall; stipules not markedly white pilose or long persistent; leaflets in 3-5 whorls; leaflet blades 5-15 mm; corolla standard ca. 2.2 cm; legume cylindric. |
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9 O. pseudoglandulosa |
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Lower Taxa
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