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Invasive Plants of Mt. Diablo

Yellow Starthistle 1
Centaurea solstitialis
Purple star-thistle 2
Centaurea calcitrapa

Edited by Christina Lew McLain, some rights reserved (CC BY-SA)

Photo Credits

  • 1. (c) Bill Bumgarner, some rights reserved (CC BY-NC-ND)
  • 2. (c) José María Escolano, some rights reserved (CC BY-NC-SA)

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