Conyza
| Horseweed | |
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| File:Conyza bonariensis.jpg | |
| Conyza bonariensis | |
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Conyza
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| Synonyms[3] | |
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Conyza (horseweed, butterweed or fleabane) is a genus of flowering plants in the sunflower family.[4][5][6][7]
They are native to tropical and warm temperate regions throughout the world, and also north into cool temperate regions in North America and eastern Asia. The New World species of the genus are closely related to Erigeron (also known as fleabanes).[8]
The species are annual or perennial herbaceous plants, rarely shrubs, growing to 1-2 m tall. The stems are erect, branched, with alternate leaves. The flowers are produced in inflorescences, with several inflorescences loosely clustered on each stem.[8]
Many plant species of the Conyza genus are ruderal species and some have been found to be resistant to the herbicide glyphosate, in some cases.[9]
- Species[3]
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References
- ↑ Tropicos search for Conyza
- ↑ Tropicos Conyza argentea Lam.
- ↑ 3.0 3.1 Flann, C (ed) 2009+ Global Compositae Checklist
- ↑ Lessing, Christian Friedrich. 1832. Synopsis Generum Compositarum 203–204 in Latin
- ↑ Tropicos, Conyza Less.
- ↑ Cronquist, A. 1943. The separation of Erigeron from Conyza. Bull. Torrey Bot. Club 70: 629–632. 1943.
- ↑ Nesom, G. L. 1990c. Further definition of Conyza (Asteraceae: Astereae). Phytologia 68: 229–233.
- ↑ 8.0 8.1 Flora of North America, Horseweed, Conyza Lessing
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
