Trichostema

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.

Species
Species include:
 * Trichostema arizonicum A.Gray – Arizona, New Mexico, Texas, Sonora, Chihuahua
 * Trichostema austromontanum H.F.Lewis – Nevada, California, Baja California
 * Trichostema brachiatum L. - central and eastern North America
 * Trichostema dichotomum L. – Bahamas, Quebec, Ontario, eastern and south-central United States
 * Trichostema fruticosum K.S.McClell. - Mississippi, Alabama, Florida, Georgia
 * Trichostema lanatum Benth. – California, Baja California
 * Trichostema lanceolatum Benth. – Washington, Oregon, California, Baja California
 * Trichostema laxum A.Gray – Oregon, California
 * Trichostema mexicanum Epling – northeastern Mexico
 * Trichostema micranthum A.Gray – Arizona, California, Baja California
 * Trichostema nesophilum K.S. McClell. & Weakley – North Carolina, South Carolina
 * Trichostema oblongum Benth. – British Columbia, Washington, Oregon, California, Nevada, Idaho
 * Trichostema ovatum Curran – California
 * Trichostema parishii Vasey – California, Baja California
 * Trichostema purpusii Brandegee – central and southern Mexico
 * Trichostema rubisepalum Elmer – central California
 * Trichostema ruygtii H.Lewis – northern California (Lake, Napa, Solano Counties)
 * Trichostema setaceum Houtt. – eastern and south-central United States
 * Trichostema simulatum Jeps. – Oregon, California
 * Trichostema suffrutescens Kearney – Florida