Perennial Soybean
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Perennial Soybean
ative Photo: Prashant Awale
Common name: Perennial Soybean • Gujarati: સોયાબીન Soyabin • Hindi: जंगली सोयाबीन Jungli Soyabeen • Kannada: ಕಾಡು ಸೋಯಾ ಅವರೆ Kaadu Soyaa Avare • Konkani: रान सोयाबीन Ran Soyabeen • Malayalam: കാട്ടഅവരയ്ക്ക വള്ളി Kaattavarakka Valli • Marathi: रान सोयाबीन Ran Soyabeen • Odia: ବଣ ସୋୟାବିନ Bana Soyabeen • Tamil: காட்டவரைக்கொடி Kaatavaraikkodi • Telugu: అడవి సోయాబీన్ Adavi Soyabeen Source: Names of Plants in India
Botanical name: Neonotonia wightii    Family: Fabaceae (Pea family)
Synonyms: Glycine javanica, Glycine wightii, Notonia wightii

Perennial Soybean is a twining or prostrate perennial herbs, with stems 0.6-4.5 m long, often forming dense clumps, woody toward the base. The plant is densely velvety with long, spreading to prostrate rusty hairs. Leaves are trifoliate with elliptic, ovate, or rhombic-ovate leaflets, 1.5-16 cm long, 1.3-12.5 cm wide, smooth to densely velvety. Flowers are borne in dense or lax pseudoracemes, up to 2-60 cm long. Sepal cup is sparsely to densely velvety, 1.5-2 mm long, sepals linear-lanceshaped, 2-3 mm long. Flowers are white or white with a mauve spot on the standard petal, drying orange. Standard petal is 4-7.5 mm long, wings with a tooth or lobe at juncture of lobe and claw. Pods are linear-oblong, straight or curved, 15-36 mm long, 2.5-5 mm wide, densely rusty hairy, transversely grooved between the seeds, Seeds are 4-7, dark reddish brown, oblong, somewhat compressed, 2.5-4 mm long, 1.5-3 mm wide. Perennial Soybean is found in Africa, South India and SE Asia.

Identification credit: Shrikant Ingalhalikar Photographed in Belgaum, Karanataka.

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