Dig deeper at SERNEC, a consortium of southeastern herbaria.
Check out EDDMapS.org to see where this has been reported.
Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
Canada Thistle, Field Thistle
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JK Marlow jkm060712_059
July Tazewell County VA
Numerous small heads (0.5"-0.75") in a branched inflorescence, per Wildflowers of the Southern Mountains.
Bruce Ackley, The Ohio State University, Bugwood.org bug_5436742
Lower leaf surfaces are green, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org bug_5451379
Pappus tawny, plumose, per Vascular Flora of the Carolinas.