Acer

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Introduced

Trees or shrubs, often deciduous. Leaves opposite, usually palmately or pinnately divided, rarely entire; stipules usually absent. Inflorescence a corymb, umbel, raceme or panicle. Flowers all or some unisexual; sepals 5 (rarely 4 or 6), free or sometimes shortly fused near base; petals free, equal in number to sepals and often resembling them; stamens 4–12, but commonly 8, filaments sometimes basally united with the prominent nectary disc, anthers basifixed or versatile, opening by longitudinal slits; ovary superior or half-inferior, 2-locular, usually prominently laterally compressed, ovules 1 or 2 per locule, styles 2, free or shortly united, stigma linear. Fruit a winged schizocarp, (a double samara), the mericarps each 1-seeded.

About 110 species mosty from cooler regions of Eurasia and northern America, extending to the tropics in Malesia. Widely grown for ornament. Four species naturalised in Australia.

Source: Walsh, N.G. (1999). Aceraceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 4, Cornaceae to Asteraceae. Inkata Press, Melbourne.
Updated by: Neville Walsh, 2014-09-10
 
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life Life
kingdom Plantae
phylum Tracheophyta
superorder Rosanae
order Sapindales
family Sapindaceae
Higher taxa
genus Acer
Subordinate taxa