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Amphicarpaea linearis

Description from Flora of China

Herbs, annual. Stems slender, densely hirsute, glabrescent. Stipules linear to linear-lanceolate, 4-5 mm; petiole 4.5-8 cm; stipels small, subulate; petiolules 2-3 mm, hirsute; leaflets membranous or nearly membranous; terminal leaflet ovate to broadly ovate, 4.5-6 × 3-3.5 cm, both surfaces sparsely adpressed deciduous hirsute, basal veins 3, lateral veins 4 or 5 on each side, slender, base rounded or nearly truncate, rarely broadly cuneate, apex with acute mucro; lateral leaflets obliquely ovate, much smaller. Cleistogamous flowers not re­corded. Racemes axillary, 3-7.5 cm; peduncle 1.5-3 cm; bracts linear, 4-5 mm, hairy. Pedicels short, ca. 1 mm. Bracteoles ca. 1.5 mm. Calyx tubular-campanulate, almost glabrous, 5-6 mm, 5-lobed; lobes unequal, lowest one longest. Corolla blue; stan­dard ca. 1 cm; wings and keels with long slender stipes. Anthers small, almost orbicular. Ovary linear, 9-ovuled. Fruit not seen. Fl. Jan.

● Roadsides, open fields. Hainan, Yunnan.


 

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