Botanical name: Indigofera nummulariifolia Family: Fabaceae (Pea family)
Synonyms: Hedysarum nummulariifolium, Indigofera echinata, Indigofera nummularifolia
Coinwort Indigo is an annual herb with stems usually prostrate, spreading, hairless or nearly so, sometimes rooting at the nodes. Stipules are lanceshaped-subulate, 2-3 mm long; leaves simple, somewhat ciicular to obovate, 1.5-5 cm long, 1.5-2.5 cm wide, obtuse at the tip, wedge-shaped at the base, hairless above, appressed-pubescent and gland-dotted below. Flowers are borne in racemes which are about 6-15-flowered, reflexed, in leaf axils. Bracts are minute, subulate. Flowers are tiny, about 3-3.5 mm long, calyx 2.5 mm long, with attenuate sepals, strigillose. Petals are pink or reddish, the vexillum lightly strigillose on the outer face, ovary 2-ovulate. Fruit is lunate, about 5-7 mm long, splitting open, beset with hooked spines, 1(-2)-seeded. Coinwort Indigo is found in Tropical Africa, Madagascar, Sri Lanka, India and Indo-China. In India it is found in Kerala, Karnataka.
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The flower labeled Coinwort Indigo is ...