Delaware Wildflowers • Common names
Musk Thistle
Carduus nutansAsteraceae — Aster family
Non-native
White Clay Creek State Park -- Possum Hill
June 2003
Mill Creek Greenway Trail
June 2003
Auburn Heights Preserve
May 2015
Auburn Valley State Park
June 2020
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Photos copyright David G. Smith
Information from the Delaware Flora Checklist used with author's permission.