Botanical Survey of India | Flora of India

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Herbs, perennial. Leaves ternately compound. Flowers solitary or in dichasial cymes. Sepals 5, petaloid. Petals honey leaves small or absent. Stamens many, shorter than sepals. Carpels 2 - 5. Fruit of up to 20 sessile free follicles.

N. Temperate regions; ca 30 species, 2 in India.

Literature. TAMURA, M. & L. A. LAUENER (1968) A revision of Isopyrum, Dichrocarpum and allies. Notes R. Bot. Gard. Edinb. 28: 267 - 273.



KEY TO THE SPECIES


1a. Leaves 2-ternately compound; leaflets deeply dissected; petals tubulose 1. Isopyrum anemonoides
b. Leaves 3- to 4-ternately compound; leaflets not deeply dissected; petals flat to shortly concave or cymbiform, not tubulose 2. Isopyrum ludlowii


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