Flora of the Southeastern United States
2022 Edition


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Cirsium carolinianum (Walter) Fernald & Schubert. Carolina Thistle, Spring Thistle, Prairie Thistle. Phen: Apr-Jun (-Jul). Hab: Prairies, open woodlands over mafic, ultramafic, or calcareous rocks. Dist: N. VA west to s. OH and MO, south to w. SC, n. GA, AL, and TX.

Origin/Endemic status: Endemic

Syn: = Ar, C, F, FNA19, G, Il, K1, K3, K4, Oh3, SE1, Tn, Va, W; = Carduus carolinianus – RAB; > Cirsium flaccidum – S; > Cirsium virginianum – S, misapplied

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image of plant© Bruce A. Sorrie