Roldana
''Roldana'' also known as groundsel is a genus of large herbs or sub shrubs from the tribe groundsel tribe within the sunflower family. Most if not all of its members used to be members of a related genus, ''Senecio''. The species which are native to Southwest United States, Mexico and Central America and naturalized elsewhere. ; Species ; formerly included several species now regarded as better suited to other genera: ''Senecio Trixis ''Trixis'' is a genus of shrubs in the family Asteraceae, native to North and South America including the West Indies. Members of the genus are commonly known as threefolds due to the outer lip of the corolla. The generic name is derived from ( ...'' References External links Senecioneae Asteraceae genera Flora of North America {{Senecioneae-stub ...
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