Alternanthera

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Annual or perennial herbs. Leaves opposite. Spike contracted, rarely pedunculate, capitate, terminal or axillary. Flowers bisexual, each subtended by a small bract and a pair of bracteoles; tepals 5, free; fertile stamens 2–5, staminodes usually present, all united at base into a membranous cup surrounding the ovary; stigma ± sessile. Fruit indehiscent, flattened.

About 80 species, widespread in tropical and warm-temperate areas (chiefly South America); 11 species in Australia, 5 introduced.

Source: Walsh, N.G. (1996). Amaranthaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 3, Dicotyledons Winteraceae to Myrtaceae. Inkata Press, Melbourne.
Updated by: Val Stajsic, 2019-02-08
 
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