Trichostema
{{Short description|Genus of flowering plants}}
{{Automatic taxobox
|image = Trichostema lanatum flowers 2005-03-24.jpg
|image_caption = Trichostema lanatum
|taxon = Trichostema
|authority = L.
|type_species = Trichostema dichotomum
|type_species_authority = L.lectotype designated by N. L. Britton et A. Brown, Ill. Fl. N.U.S. ed. 2. 3: 104 (1913)
|synonyms=*Isanthus Michx.
- Eplingia L.O.Williams
}}
Trichostema is a genus of flowering plants in the family Lamiaceae, which are aromatic herbs or subshrubs. These plants are native to North America.[http://apps.kew.org/wcsp/namedetail.do?name_id=208472 Kew World Checklist of Selected Plant Families][http://bonap.net/NAPA/TaxonMaps/Genus/County/Trichostema Biota of North America Program 2013 county distribution maps] Many plant of this genus which have whorls of small blue flowers are called by the common name bluecurls.{{PLANTS|id=TRICH9|taxon=Trichostema|access-date=14 December 2015}}
Species
Species include:{{r|wcspf}}
- 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 {{small|K.S. McClell. & Weakley}} – North Carolina, South Carolina{{r|weakley2019}}
- 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