Different Species of Parthenium in the World
(Received with thanks from: Richard J. Schmidt - PhD, The Botanical Dermatology Database.)


Parthenium L.
Fifteen species occur in America and the West Indies. One has recently been introduced to the Indian subcontinent and elsewhere. The genus is classified in the tribe Heliantheae. Potentially allergenic sesquiterpene lactones have been reported from the following species: P. alpinum Torrey & A. Gray var. tetraneuris Rollins (syn. Parthenium tetraneuris Barneby) P. bipinnatifidum Rollins (syn. Villanova bipinnatifida Ortega) P. ligulatum Barneby (syn. Parthenium alpinum Torrey & A. Gray var. ligulatum M.E. Jones) P. lozanianum Bartlett Other taxa are considered in the monographs below.

Parthenium argentatum A. Gray Guayule
Parthenium cineraceum Rollins

Parthenium confertum A. Gray var. lyratum Rollins
Parthenium confertum A. Gray var. divaricatum
Parthenium confertum A. Gray var. microcephalum
Parthenium densipilum S.F. Blake

Parthenium fruticosum Less. var. trilobatum Rollins
Parthenium glomeratum Rollins
Parthenium hysterophorus L.
Parthenium incanum Kunth
Parthenium integrifolium L.
Parthenium integrifolium L. var. auriculatum (syn. Parthenium auriculatum Britton)
Parthenium rollinsianum Rzed.
Parthenium schottii Greenman
Parthenium tomentosum DC.
Parthenium tomentosum DC. var. stramonium (syn. Parthenium stramonium Greene)

For the original source of this information, please visit http://bodd.cf.ac.uk/BotDermFolder/BotDermC/COMP.html

You may also write to the author of the original article at schmidt@cf.ac.uk

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