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FOC | Family List | FOC Vol. 10 | Fabaceae

1. Oxytropis subg. Ptiloxytropis Bunge in Boissier, Fl. Orient. 2: 502. 1872.

柔毛棘豆亚属 rou mao ji dou ya shu

Herbs, acaulescent, markedly pubescent. Leaves imparipinnate, 5-15-foliolate; rachis not persistent as a spine. Racemes dense or lax, 3- to many flowered. Flowers 0.7-2 cm. Calyx long lobed; lobes 0.5-2 × as long as tube. Corolla bluish violet, purple, rose, reddish purple, or white. Legume 6-9 mm, included within calyx tube but sometimes splitting tube, indehiscent.

Five species in two sections: China, Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, Uzbekistan; four species (two endemic) in two sections (one endemic) in China.

1 Calyx inflated at anthesis, lobes shorter than tube.   1 O. sect. Mongolia
+ Calyx not inflated at anthesis, lobes as long as or longer than tube.   2 O. sect. Ptiloxytropis (p. 461)


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