What is "trichocoronis"

Trichocoronis is a genus of North American aquatic plants in the boneset tribe within the sunflower family. Bugheal is a common name for plants in this genus.

Trichocoronis is thought to be related to two other aquatic genera in the same tribe: Sclerolepis and Shinnersia. They are annuals or perennials.

1. Trichocoronis sessilifolia (S.Schauer) B.L.Rob. - Michoacán, Oaxaca, Jalisco, D.F., México State
2. Trichocoronis wrightii (Torr. & A.Gray) A.Gray - Texas, California, Baja California Sur, Sonora, Tamaulipas, San Luis Potosí

• Trichocoronis rivularis A.Gray - Shinnersia rivularis (A.Gray) R.M.King & H.Rob.