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43. Brachystelma R. Brown, Bot. Mag. t. 2343. 1822.
[nom. cons.]
润肺草属 run fei cao shu
Herbs erect, perennial. Rootstock usually a subglobose tuber [sometimes a cluster of swollen roots]. Leaves opposite, sessile or subsessile. Inflorescences umbel-like or racemelike. Pedicel slender, short. Calyx with 5 basal glands. Corolla campanulate to subrotate; lobes erect or spreading, valvate. Corona double, attached to staminal column, outer series of 5 deeply 2-cleft lobes exceeding staminal column, inner series of 5 oblong lobes incumbent over stigma head, not or hardly exceeding staminal column. Filaments connate into a short tube; anthers without membranous apex; pollinia 2 per pollinarium, erect or ascending, with a translucent margin. Stigma head depressed. Follicles often linear, usually paired. Seeds comose.
About 60 species: mostly in Africa, also in Oceania and SE Asia; two species in China.
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Plants to 15 cm tall; internodes short; leaves 2-4 × 0.2-0.3 cm; inflorescences racemelike, many flowered |
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1 Brachystelma edule |
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Plants to 50 cm tall; internodes long; leaves 5-6.5 × ca. 1.1 cm; inflorescences umbel-like, few flowered |
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2 Brachystelma kerrii |
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Lower Taxa
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