Grown habit: Forb/herb
Duration: Biennial
Synonyms:
= Cirsium canescens Nutt.
= Carduus undulatus Nutt. var. canescens (Nutt.) Porter
= Cirsium nebraskense (Britton) Lunell
= Cirsium plattense (Rydb.) Cockerell ex Daniels
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Distribution in USA and Canada (*)
USA (CO, IA, ID, MO, MT, ND, NE, NM, OH, SD, WI, WY)
Map for Cirsium nelsonii (Pammel) Petr.
(*) USDA, NRCS. 2009. The PLANTS Database (http://plants.usda.gov, 28 August 2009). National Plant Data Center, Baton Rouge, LA 70874-4490 USA
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