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11. Tribe CROTALARIEAE
猪屎豆族 zhu shi dou zu
Authors: Jianqiang Li, Hang Sun, Zhi Wei, Roger M. Polhill & Michael G. Gilbert
Shrubs or herbs. Leaves generally digitately 3(-7)-foliolate, sometimes 1-foliolate or simple, usually pulvinate; stipels absent. Inflorescences terminal, ± leaf-opposed, or less often axillary, racemes or heads, sometimes flowers solitary or aggregated into leafy pseudoracemes. Calyx generally with 5 subequal lobes. Corolla papilionaceous; standard sometimes with basal calluslike appendages. Stamens all connate into a sheath split above; anthers generally dimorphic, alternately basifixed and dorsifixed. Ovary 2- to many ovuled; style bearded lengthwise or minutely ciliate on adaxial side. Legumes usually turgid or inflated, rarely compressed, 2-valved, continuous within. Seeds estrophiolate.
Eleven genera and slightly more than 1,200 species: most diverse in S Africa where all but one N African genus occur, two genera extending east to China and one pantropical (Crotalaria); three genera (one introduced) and 44 species (nine endemic, seven introduced) in China.
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| 1 |
Stamens all similar; legume compressed, narrowly oblong, 3.5-5.5 × ca. 0.2 cm. |
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52 Rothia |
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Stamens dimorphic, 5 shorter with oblong basifixed anthers alternating with 5 longer with ovoid dorsifixed anthers; legume usually conspicuously inflated, or if not then less than 1.5 cm and/or more than 0.4 cm wide |
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(2) |
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| 2 (1) |
Calyx lobes distinct or sometimes 2 adaxial ones connate; legume usually conspicuously inflated (but flat in C. psoraleoides). |
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50 Crotalaria |
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Calyx with 4 adaxial lobes connate in pairs; legume only slightly inflated. |
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51 Lotononis |
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Lower Taxa
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