Conyza bonariensis (L.) Cronquist
Details
Conyza bonariensis (L.) Cronquist (1943)
Nomenclature
Classification
Vernacular names
Descriptions
Conyza bonariensis (L.) Cronquist
Erect annual to biennial herb, up to 1.2 m tall. Stems ridged, moderately to densely hairy, often becoming sparsely hairy below. Cauline lvs oblanceolate to linear, undulate and usually twisted, apetiolate and cuneate, acute, mostly entire, sometimes remotely serrate to shallowly 1-pinnatifid, densely scaberulous, ciliate, (20)-40-100 × 2-8-(12) mm; uppermost lvs smaller, usually linear. Infl. a diffuse leafy panicle with lateral branches often exceeding main axis. Capitula 2-3 mm diam.; receptacle usually smooth, rarely with very short flanges between pits. Inner involucral bracts lanceolate to linear, green, distinctly tinged purple at apex, usually hairy at least near apex, 4-5.5 mm long; outer bracts moderately to densely hairy. Outer florets filiform, cream, usually becoming reddish. Achenes obovoid-cylindric, sparsely hairy, 1.5-1.8 mm long; pappus hairs cream to orange-yellow, usually later tinged reddish at tips.
Taxonomic concepts
Conyza bonariensis (L.) Cronquist
Conyza bonariensis (L.) Cronquist
Conyza bonariensis (L.) Cronquist
Conyza bonariensis (L.) Cronquist
Conyza bonariensis (L.) Cronquist
Conyza bonariensis (L.) Cronquist
Conyza bonariensis (L.) Cronquist
Conyza bonariensis (L.) Cronquist
Collections
Notes
editorial
In studies by Noyes 2000 and Nesom 2008, Conyza, as traditionally circumscribed, was found to be nested within Erigeron and to be para- and/or polyphyletic. There is no full alternate taxonomy provided. Noyes doesn't make taxonomic suggestions or provides a synonymy.
Metadata
94e23efa-7d83-4983-b8c1-9a3edcaf5d74
scientific name
Names_Plants
1 January 2000
15 October 2014