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Centaurea virgata
squarrose knapweed Aster Family
Centaurea virgata Asteraceae
common name
  squarrose knapweed
accepted scientific name
  Centaurea virgata Lam.
rules for finding collection records
  Centaurea squarrosa (25)
  Centaurea virgata (85)
family name
Image Author: ©2015 Zoya Akulova
Image License: CC BY-NC
Image Source
Category: Wildflowers
Flowers: Many petals
Petal colors: color color
Leaf: Alternate, Basal
Plant Observed 3rd week of April thru 2nd week of October
Native to Western Asia. Invasive in AZ, CA, CO, NV, NV, UT. Noxious weed in OR.

How Likely at this Location (12%)
Name Match (100%)
Plant Showiness (36%)
Links to Plant Photos
Cal Photos (10)
G.D.Carr (6)
base map where plant found
mag select

grid lines base