Trichostema is a genus of flowering plants in the family Lamiaceae, which are aromatic herbs or subshrubs. These plants are native to North America. Many plant of this genus which have whorls of small blue flowers are called by the common name bluecurls.
Trichostema arizonicum A.Gray – Arizona, New Mexico, Texas, Sonora, Chihuahua
Trichostema austromontanum H.F.Lewis – Nevada, California, Baja California
Trichostema brachiatum L. - eastern, central, + southwestern US; also Quebec, Ontario
Trichostema ...