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Cirsium altissimum
Also called Roadside Thistle
Cirsium altissimum is a North American species of plants in the tribe Cardueae within the family Asteraceae. Common names are tall thistle or roadside thistle. The species is native to the eastern and Central United States.
C. altissimum has a native range in the United States extending from Massachusetts west to North Dakota and south to Texas and the Florida Panhandle. The species grows in prairies, open woodlands, and disturbed sites.
Dwarf Thistle · Rose thistle · Franciscan thistle · Alishan Thistle · Arizona thistle · Creeping Thistle · Barneby's thistle · Cirsium boninense · Cirsium brachycephalum · Palouse thistle · Clustered thistle · Prairie thistle
Text excerpted from the Wikipedia article Cirsium altissimum by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
