Acmella

Rich. ex Pers.
Description: 
Annual herbs. Leaves opposite and/or basally rosulate. Capitula usually radiate, sometimes disciform or discoid, solitary or cymose. Involucral bracts in 1-3 rows, subequal or with outer row spreading and longer, entire or irregularly dentate. Receptacle narrowly conical, acuminate to obtuse at the apex, paleae laxly enclosing florets. Ray florets female, fertile, 3-22 per capitulum, usually small, 2- to 3-lobed, variously coloured. Disc florets bisexual, fertile, 4- to 5-lobed, small, variously coloured. Cypselas ciliate, glabrous or sometimes with glabrous margins; ray cypselas broadly ovate or elliptic, 3-angled; disc cypselas elliptic, strongly compressed. Pappus 0.
Distribution: 
Species 30, tropical, some pantropical weeds; sthn trop. Afr. 1: Acmella caulirhiza Delile, Angola, Zambia, Zimbabwe, Malawi, Mozambique. According to Lisowski (1991) also in sthn Afr.
Source: 
SSTA
Classification: 
ASTERACEAE

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Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith