Alchornea

Dioecious, sometimes monoecious, trees or shrubs. Indumentum simple. Leaves simple, alternate, with or without stipels. Male flowers in clusters; calyx closed in bud, later splitting into 2-5 valvate lobes; disk 0; petals 0; anthers 2-thecous; stamens 8 or fewer. Female flowers usually 1 per bract; sepals (3-)4(-6); disk 0; petals 0; ovary 2-3-locular. Fruits 2-4-lobed, smooth or warty, splitting into 2-valved cocci.

Alchornea is a plant genus of the family Euphorbiaceae first described as a genus in 1788. It is widespread in tropical and subtropical regions of Africa, South Asia, Australia, Latin America, and various oceanic islands. Molecular phylogenetic analyses suggest that Bocquillonia from New Caledonia is nested in Alchornea.

Species Alchornea acutifolia - Venezuela, Colombia, Peru Alchornea alnifolia - Madagascar, Mayotte Alchornea anamariae - Peru, Bolivia Alchornea androgyna - N Vietnam Alchornea annamica - Vietnam Alchornea aquifolia - Queensland, New South Wales Alchornea bogotensis - Venezuela, Colombia, Ecuador Alchornea brittonii - Peru, Bolivia Alchornea castaneifolia - South America Alchornea chiapasana - Veracruz, Chiapas Alchornea coelophylla - Colombia, Ecuador Alchornea cordifolia - tropical Africa Alchornea costaricensis - Central America, Colombia, Ecuador Alchornea davidii - S China Alchornea discolor - South America Alchornea floribunda - tropical Africa Alchornea fluviatilis - South America Alchornea glabra - Anhui Alchornea glandulosa - South + Central America Alchornea grandiflora - South + Central America Alchornea grandis - Venezuela, Colombia, Ecuador, Panama Alchornea guatemalensis - Baja Verapaz Alchornea hilariana - Peru, Bolivia, Brazil Alchornea hirtella - Africa Alchornea humbertii - Madagascar Alchornea hunanensis - Hunan Alchornea integrifolia - Guatemala, Honduras, Colombia Alchornea latifolia - Mexico, West Indies, C + S America Alchornea laxiflora - Africa Alchornea liukiuensis - Taiwan, Nansei-shoto Alchornea lojaensis - Ecuador Alchornea megalophylla - Colombia, Panama Alchornea mildbraedii - Cameroon Alchornea mollis - E Himalayas Alchornea occidentalis - C Africa Alchornea parviflora - Thailand, Philippines, Borneo, Sumatra, Malaysia Alchornea pearcei - Peru, Bolivia, Colombia, Ecuador Alchornea perrieri - Madagascar Alchornea rhodophylla - Penang Alchornea rugosa - SE Asia, S China, Assam, Queensland, Papuasia Alchornea scandens - Vietnam Alchornea sicca - Luzon, Indochina Alchornea sidifolia - S Brazil, Misiones Alchornea tachirensis - Venezuela, Colombia Alchornea tiliifolia - SE Asia, E Himalayas Alchornea trewioides - S China, N Vietnam Alchornea triplinervia - South + Central America, Trinidad Alchornea ulmifolia - Ryukyu Islands Alchornea vaniotii - Yunnan Alchornea websteri - Ecuador Alchornea yambuyaensis - SC Africa formerly included

moved to other genera (Aparisthmium Cleidion Cnesmone Discocleidion Discoglypremna Necepsia Neoscortechinia Orfilea Sampantaea Trigonostemon Wetria )

A. amentiflora - Sampantaea amentiflora A. arborea - Neoscortechinia nicobarica A. blumeana - Wetria insignis A. caloneura - Discoglypremna caloneura A. castaneifolia - Necepsia castaneifolia A. cordata (A.Juss.) Müll.Arg. 1866 not Benth. 1849 - Aparisthmium cordatum A. coriacea (Baill.) Müll.Arg. 1865 not Ule 1909 - Orfilea coriacea A. cuneata - Trigonostemon heteranthus A. cuneifolia - Trigonostemon heteranthus A. latifolia Klotzsch not Sw. 1788 - Aparisthmium cordatum A. macrophylla - Aparisthmium cordatum A. madagascariensis - Necepsia castaneifolia A. mairei - Cnesmone mairei A. mappa - Macaranga mappa A. martiana - Conceveiba martiana A. multispicata - Orfilea multispicata A. oblongifolia - Cleidion castaneifolium A. orinocensis - Aparisthmium cordatum A. rufescens - Discocleidion rufescens