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tall thistle
Cirsium altissimum
Cirsium altissimum
tall thistle Aster Family
Cirsium altissimum Asteraceae
--more--
common names
  tall thistle
  roadside thistle
accepted scientific name
  Cirsium altissimum (L.) Hill
rules for finding collection records
  Cirsium altissimum (2595)
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 3rd week of May thru 1st week of November

How Likely at this Location (78%)
How Likely at this Elevation (88%)
How Likely at this Time of Year (10%)
Name Match (100%)
Near Plant Sighting (20%)
Plant Showiness (72%)
Overall Match (94%)
base map where plant found line line
mag select

Forest
Disturbed
Riparian
Grassland
Native Plant Status
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native Native
native Not Present