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Carduus tenuiflorus
winged plumeless thistle Aster Family
Carduus tenuiflorus Asteraceae
common names
  winged plumeless thistle
  slender flowered thistle
accepted scientific name
  Carduus tenuiflorus W. Curtis
rules for finding collection records
  Carduus tenuiflorus (247)
family name
Image Author: ©2011 Zoya Akulova
Image License: CC BY-NC
Image Source
Category: Wildflowers
Flowers: Many petals
Petal colors: color color
Flower size is .25 to .5 inches
Leaf: Alternate
Plant Observed beginning of April thru 1st week of September
Invasive in CA, WA. Noxious weed in OR.

How Likely at this Location (15%)
Name Match (100%)
Plant Showiness (45%)
Links to Plant Photos
Cal Photos (35)
Wikimedia Commons (7)
Morwell NP (1)
base map where plant found
mag select

grid lines base