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Centaurea diffusa
white knapweed Aster Family
Centaurea diffusa Asteraceae
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common names
  white knapweed
  diffuse knapweed
  tumble knapweed
accepted scientific name
  Centaurea diffusa Lam.
rules for finding collection records
  Centaurea diffusa
family name
  Asteraceae
Image Author: ©2008 Franz Xaver
Image License: CC BY-SA
Image Source
Category: Wildflowers
Flowers: Many petals
Petal colors: color
Flower size is .5 to .8 inches
Leaf: Alternate
Plant Observed 2nd week of May thru end of October
Invasive in AZ, CA, CO, ID, MT, NE, NV, NM, ND, SD, UT, WA, WY. Noxious weed in MT, OR.

How Likely at this Location (27%)
Name Match (100%)
Plant Showiness (45%)
base map where plant found

Disturbed
grid lines base