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 |