There is evidence of several species of weeds, including St. John’s Wort, Creeping Thistle, Bermuda Grass, Medusahead, and Annual Bluegrass developing localized ecotypes based on the conditions of the neighboring environment.
Medusahead | medusahead |
Introduced species of plants in the area are also a threat, including red brome (Bromus madritensis ssp. rubens), yellow starthistle (Centaurea solstitialis), and medusahead (Taeniatherum caput-medusae).
Medusahead was found to be susceptible to certain root rot fungi including crown rot and take-all, but it was not susceptible to barepatch, browning root rot, and common root rot.