Botanical name: Oxalis spiralis    Family: Oxalidaceae (Wood sorrel family)
Synonyms: Xanthoxalis spiralis

Spiral Woodsorrel is a creeping, bulbous, fleshy herb with fibrous roots; branchlets reddish, rooting at nodes. Leaves are alternate, 3-foliolate, leaf-stalks up to 7.5 cm; leaflets 3, almost equal, 1.5-2 x 1.2-2 cm; median one inverted-heart-shaped, larger; laterals oblique. Flower-cluster-stalks arise singly, up to 14 cm, from the upper half of branchlets. Flowers are borne in 6-12 flowered clusters. They are yellow, 7 mm wide; flower-stalk 8 mm. Petals are 5, inverted-heart-shaped, 7 x 3 mm, red-veined outside. Sepals are 5, elliptic-pointed, 5 x 2 mm, pink-tipped. Stamens 5 + 5; filaments 4 mm and 2 mm. Ovary is conical, styles 5; stigma 10-rayed. Spiral Woodsorrel is native to South America, cultivated and probably naturalized in South India.

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The flower labeled Spiral Woodsorrel is ...