Highlight Photo
Invasive species in a management mosaic
Yellow starthistle
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
