Whitetop: The Early Bird of Noxious Weeds

摘要

Bozeman, Montana (April 27, 2009)--Are those white-topped plants, weeds, or flowers? If it is early spring, they're probably weeds, and you should make plans to get them under control. Whitetop is a noxious weed that is toxic to cattle. Also known ashoary cress, whitetop includes three species in the mustard family that are all members of the Cardaria genus. Though they can be confused when they are flowering with the native plant western yarrow, the native blooms later in the summer and has fern-like leaves. The three white-topped weeds are globed-podded whitetop, lens-podded whitetop and heart-podded whitetop.