Cirsium engelmannii Rydberg. Engelmann's Thistle. Phen: May-Jul. Hab: Prairies, oak savannas. Dist: Sw. AR and s. OK south to nw. LA and e. TX.
Origin/Endemic status: Native
Synonymy: = Ar, FNA19, K3, K4, NcTx, Ok
Heliophily: 8
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