Ricinus

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Introduced

Trees, shrubs or tall herbs, annual or perennial, monoecious. Leaves alternate, deeply palmately lobed, petiolate; stipules absent. Inflorescences terminal or axillary panicles; male flowers lowermost; female flowers uppermost. Calyx 3–5-lobed, valvate, membranous; petals absent. Male flowers with c. 1000 stamens, filaments filiform, repeatedly branched, anthers 2-celled, dehiscing longitudinally. Female flowers with caducous calyx lobes; ovary 3-celled, ovules 1 per cell, styles 3, usually bifid. Fruit a spiny capsule dehiscing into three 2-valved mericarps; seeds 3 per capsule, caruncle present.

Monotypic genus from tropical Africa; widely naturalized.

Source: Jeanes, J.A. (1999). Euphorbiaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 4, Cornaceae to Asteraceae. Inkata Press, Melbourne.
Hero image
life Life
kingdom Plantae
phylum Tracheophyta
superorder Rosanae
order Malpighiales
family Euphorbiaceae
Higher taxa
genus Ricinus
Subordinate taxa