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Genus Acmella Family Asteraceae

Description: Annual or perennial herbs.

Leaves opposite, petiolate.

Heads solitary terminal or axillary. Heads ± campanulate; involucral bracts 1–3-seriate, ± equal, usually broad and thin, outer ones leaf-like; receptacle conical, scales folded around florets. Ray florets usually present; 1-seriate, female. Disc florets bisexual, tubular, 5-toothed; anthers not or scarcely lobed at the base; style arms acute in ray florets, truncate in disc florets.

Ray achenes 3-angled. Disc achenes laterally compressed, 2-angled, often ciliate along margins; pappus absent or of 1–3 short fine bristles.


Distribution and occurrence: World: c. 30 species, North & South America, southern Asia, New Guinea & Australia. Australia: 3 species (1 species native, 2 species naturalized), Qld, N.T., W.A.

Text by L. Murray
Taxon concept:

One species in NSW: Acmella grandiflora

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