Grown habit: Forb/herb
Duration: Biennial, Perennial
Synonyms:
= Carduus americanus (A. Gray) Rydb.
= Carduus coloradensis Rydb.
= Cirsium acaule All. var. americanum A. Gray
= Cirsium acaulescens (Rydb.) K. Schum.
= Cirsium americanum (A. Gray) K. Schum.
= Cirsium butleri (Rydb.) Petr.
= Cirsium coloradense (Rydb.) Cockerell
= Cirsium coloradense (Rydb.) Cockerell ssp. acaulescens (Rydb.) Petr.
= Cirsium coloradense (Rydb.) Cockerell ssp. longissimum (A. Heller) Petr.
= Cirsium congdonii J.W. Moore & Frankton
= Cirsium drummondii Torr. & A. Gray ssp. lanatum Petr.
= Cirsium drummondii Torr. & A. Gray ssp. latisquamum Petr.
= Cirsium drummondii Torr. & A. Gray ssp. vexans Petr.
= Cirsium drummondii Torr. & A. Gray var. acaulescens (Rydb.) J.F. Macbr.
= Cirsium drummondii Torr. & A. Gray var. oregonense Petr.
= Cirsium erosum (Rydb.) K. Schum.
= Cirsium x erosum (Rydb.) K. Schum. (pro sp.)
= Cirsium kelseyi (Rydb.) Petr.
= Cirsium lacerum (Rydb.) Petr.
= Cirsium magnificum (A. Nelson) Petr.
= Cirsium minganense Victorin
= Cirsium oreophilum (Rydb.) K. Schum.
= Cirsium quercetorum (A. Gray) Jeps. var. citrinum Petr.
= Cirsium scariosum Nutt. var. scariosum
= Cirsium scariosum Nutt. var. thorneae S.L. Welsh
= Cirsium tioganum (Congd.) Petr.
= Cirsium tioganum (Congd.) Petr. var. coloradense (Rydb.) Dorn
= Cirsium tioganum (Congd.) Petr. var. tioganum
= Cnicus drummondii (Torr. & A. Gray) A. Gray var. acaulescens Rydb.
= Cnicus tioganus Congd.
Search for more information on the Web
Distribution in USA and Canada (*)
USA (AZ, CA, CO, ID, MT, NM, NV, OR, UT, WA, WY), CAN (AB, BC, QC)
Map for Cirsium scariosum Nutt.
(*) USDA, NRCS. 2009. The PLANTS Database (http://plants.usda.gov, 28 August 2009). National Plant Data Center, Baton Rouge, LA 70874-4490 USA
Kingdoms
(Select a kingdom and click on Ok)
Divisions
(Select a division and click on Ok)
Classes
(Select a class and click on Ok)
Families
(Select a family and click on Ok)
Genera (Asteraceae)
(Select a genus and click on Ok)
Common names (Cirsium)
(Select a common name and click on Ok)