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Genus :


Family :



Trees. Leaves simple or digitate compound, alternate or spiral, petioles thickened at both ends, stipules caducous. Flowers small, unisexual, axillary or at upper leaf scars. Sepals 5, united at the base, calyx campanulate or urceolate, stellate-pubescent. Petals absent.Male flowers with 8-10 stamens. Female flowers with 4-6 locular ovary, each locule with one ovule, styles short, stigmas 4-5, free. Fruit a samara, indehiscent, winged or keeled.

Key to the species

Serial Key Reference
1a. Nut of samaras much longer than wings 2
1b. Nut of samaras shorter than or as long as wing. Anthers in regular ring, ovaries glabrous H. paplio
2a. Nuts with transverse circular ridge H. fomes
2b. Nuts without transverse ridge H. littoralis