Highlight Photo
Invasive species in a management mosaic
Yellow starthistle
![Yellow starthistle](/system/content_item_assets/images/314/large/0114432_2009_Epanchin-Niell_etal_2009_Fig2.jpg)
Yellow starthistle is an aggressive and tenacious invasive plant. (a) Spikes on yellow starthistle flower heads can puncture the eyes of cattle; (b) yellow starthistle can form dense infestations when not controlled; © property owners must contend with spread of yellow starthistle across fencelines from neighbors who do little to control this noxious weed.
Credits: courtesy of R. Epanchin-Niell