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Cirsium altissimum
tall thistle Aster Family
Cirsium altissimum Asteraceae
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common names
  tall thistle
  roadside thistle
accepted scientific name
  Cirsium altissimum (L.) Hill
rules for finding collection records
  Cirsium altissimum
family name
  Asteraceae
Image Author: ©2012 Eric Hunt
Image License: Author's permission
Image Source
Category: Wildflowers
Flowers: No obvious petals, Many petals
Petal colors: color color
Flower size is 1.5 to 2. inches
Leaf: Alternate, Basal
Plant Observed 2nd week of July thru 3rd week of October
Native

How Likely at this Location (48%)
Name Match (100%)
Plant Showiness (72%)
Native
base map where plant found

Forest
Disturbed
Riparian
grid lines base