favicon Wildflower Identification Website.        Search for wildflowers by location, color, shape and time.       Click here for Instructions.       Login
Search Results
Centaurea calcitrapa
purple starthistle Aster Family
Centaurea calcitrapa Asteraceae
--more--
common names
  purple starthistle
  red starthistle
accepted scientific name
  Centaurea calcitrapa L.
rules for finding collection records
  Centaurea calcitrapa (298)
family name
  Asteraceae
Image Author: ©2006 Anthony Valois and the National Park Service
Image License: public domain
Image Source
Category: Wildflowers
Flowers: Many petals
Petal colors: color
Flower size is .6 to 1. inches
Leaf: Alternate
Plant Observed last week of March thru end of November
Invasive in AZ, CA, NV, NM, WA. Noxious weed in OR.

How Likely at this Location (16%)
Name Match (100%)
Plant Showiness (54%)
Links to Plant Photos
Cal Photos (72)
Tony Valois NPS (4)
Wikimedia Commons (5)
base map where plant found

Disturbed
Grassland
Riparian
grid lines base