Image of fringed thistle

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Fringed Thistle

Cirsium clavatum var. americanum (A. Gray) D. J. Keil

life cycle habit

USDA Plants data
perennial
URI: http://purl.obolibrary.org/obo/FLOPO_0980073

Definition: Of plant duration, a plant whose life span extends over more than two growing seasons, c.f. annual, biennial, ephemeral, of flowering with respect to architecture, hapaxanthic, monocarpic, pleonanthic

Attribution: Stevens, P. F. (2001 onwards). Angiosperm Phylogeny Website. Version 12, July 2012. Glossary: http://www.mobot.org/mobot/research/apweb/top/glossaryi_p.html#perennial

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