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12. Derris fordii Oliver, Hooker’s Icon. Pl. 18: t. 1771. 1888.
中南鱼藤 zhong nan yu teng
Lianas. Leaves 5- or 7-foliolate; rachis 15-28 cm, including petiole 3-8 cm; leaflet blades ovate-elliptic, ovate-oblong, or elliptic, 3-13 × 1.5-6 cm, thickly papery to thinly leathery, both surfaces glabrous, reticulate veins slightly prominent or obscure, base rounded, apex acuminate to slightly obtuse. Inflorescences and pedicels sparsely yellowish brown hispidulous or densely brownish pubescent. Pseudopanicles axillary, slightly shorter than leaves; rachis nodes with several fascicled flowers on short branchlets. Pedicel 3-5 mm. Flowers 1.2-1.3 cm. Calyx campanulate, 2-3 mm, sparsely pubescent; teeth orbicular to deltoid, short. Corolla whitish, ca. 1 cm; standard obovate-elliptic, claw short. Ovary sessile, whitish villous. Legume oblong to ligulate-oblong, 4-10 × 1.5-2.3 cm, compressed, swollen or not when mature, thinly leathery, glabrous; abaxial suture wing up to 1.5 mm wide, adaxial suture with a 2-3 mm wide wing. Seeds 1-4 per legume. Fl. Mar-May, fr. Jun-Nov.
● Mountain valleys, scrub, sparse to dense forests, mountain slopes, near trails; 500-1600 m. Chongqing, Fujian, Guangdong, Guangxi, Guizhou, Hunan, Jiangxi, Yunnan, Zhejiang.
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Leaflet blades 4-13 × 2-6 cm, reticulate veinlets slightly prominent; inflorescences and pedicels sparsely yellowish brown hispidulous; legume slightly thick, swollen when mature, abaxial suture with a less than 1 mm wide obscure wing |
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12a var. fordii |
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Leaflet blades 3-8 × 1.5-3 cm, reticulate veinlets obscure; inflorescences and pedicels densely brownish pubescent; legume thin, not swollen when mature, abaxial suture with a 1-1.5 mm wide distinct wing. |
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12b var. lucida |
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Lower Taxa
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