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Trichostema lanatum flowers 2005-03-24.jpg
Trichostema lanatum
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Lamiaceae
Subfamily: Ajugoideae
Genus: Trichostema
Type species
Trichostema dichotomum
  • 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.[2][3] Many plant of this genus which have whorls of small blue flowers are called by the common name bluecurls.[4]


Species include:[2]


  1. ^ lectotype designated by N. L. Britton et A. Brown, Ill. Fl. N.U.S. ed. 2. 3: 104 (1913)
  2. ^ a b c Kew World Checklist of Selected Plant Families
  3. ^ Biota of North America Program 2013 county distribution maps
  4. ^ USDA, NRCS (n.d.). "Trichostema". The PLANTS Database ( Greensboro, North Carolina: National Plant Data Team. Retrieved 14 December 2015.
  5. ^ Weakley, Alan S.; Schoonover McClelland, R. Kevan; LeBlond, Richard J.; Bradley, Keith A.; Matthews, James F.; Anderson, Chad; Franck, Alan R; Lange, James (2019). "Studies in the Vascular Flora of the Southeastern United States: V" (PDF). Journal of the Botanical Research Institute of Texas. 13 (1): 107–129. doi:10.17348/jbrit.v13.i1.832. S2CID 244513799.