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.^[2][3] Many plant of this genus which have whorls of small blue flowers are called by the common name bluecurls.^[4]

Trichostema
Trichostema lanatum
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Lamiales
Family:	Lamiaceae
Subfamily:	Ajugoideae
Genus:	Trichostema L.
Type species
Trichostema dichotomum L.[1]
Synonyms[2]
Isanthus Michx. Eplingia L.O.Williams

Research on species in Florida suggests that morphological differences mirror genetic difference and a pair of researchers concluded that insttad of three species endemic to Florida there are actually 10.^[5]

Species

Species include:^[2]

• 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^[6]
• 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