Hedeoma is a genus of flowering plants in the mint family, Lamiaceae. It is native to North and South America. They are commonly known as false pennyroyals.Kew World Checklist of Selected Plant FamiliesBiota of North America Program 2013 county distribution maps
The genus name is derived from the Greek words ἡδύς (hedys), meaning "sweet," and ὀσμή (osme), meaning "odour". It refers to the scent of the leaves. Hedeoma patens M.E. Jones (common name, oregano chiquito) is used by natives of northwestern Mexico to flavor various food items.Laferriere, Joseph E. 1991. Optimal use of ethnobotanical resources by the Mountain Pima of Chihuahua, Mexico. PhD dissertation, University of ArizonaDavidse, G., M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera. 2012. Rubiaceae a Verbenaceae. 4(2): i–xvi, 1–533. In G. Davidse, M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera (eds.) Flora Mesoamericana. Missouri Botanical Garden Press, St. LouisForzza, R. C. 2010. Lista de espécies Flora do Brasil . Jardim Botânico do Rio de Janeiro, Rio de Janeiro
Species Hedeoma acinoides Scheele – Slender false pennyroyal - Texas, Oklahoma, Coahuila Hedeoma apiculata W.S.Stewart – McKittrick's false pennyroyal - western Texas, southeastern New Mexico Hedeoma bella (Epling) R.S.Irving - Jalisco Hedeoma chihuahuensis (Henrard) B.L.Turner - Chihuahua Hedeoma ciliolata (Epling & W.S.Stewart) R.S.Irving - Gypsum false pennyroyal - Nuevo León Hedeoma costata Hemsl. – Ribbed false pennyroyal - Mexico, Guatemala, Texas, Arizona, New Mexico Hedeoma crenata R.S.Irving - Rio de Janeiro Hedeoma dentata Torr. – Dentate false pennyroyal - Arizona, Sonora, New Mexico Hedeoma diffusa Greene – Spreading (or Flagstaff) false pennyroyal - Nevada, Arizona Hedeoma drummondii Benth. – Drummond's false pennyroyal - western United States, Alabama, Mississippi, Nuevo León, Coahuila, Chihuahua, Sonora Hedeoma floribunda Standl. - Chihuahua Hedeoma hispida Pursh – Rough false pennyroyal - Canada, central + eastern United States (especially the Great Plains) Hedeoma hyssopifolia A.Gray – Aromatic false pennyroyal - northern Mexico, New Mexico, Arizona Hedeoma johnstonii R.S.Irving - Coahuila Hedeoma jucunda Greene - Durango Hedeoma mandoniana Wedd. - Peru, Bolivia, Jujuy Province of Argentina Hedeoma martirensis Moran - Baja California Hedeoma matomianum Moran - Baja California Hedeoma medium Epling - Argentina, Uruguay Hedeoma microphylla R.S.Irving - San Luis Potosí Hedeoma mollis Torr. – Softhair false pennyroyal - western Texas Hedeoma montana Brandegee - Coahuila Hedeoma multiflora Benth - Argentina, Uruguay, southern Brazil Hedeoma nana (Torr.) Briq. – Dwarf false pennyroyal - Chihuahua, Texas, New Mexico, Arizona, Utah, Nevada, Mohave Desert in California Hedeoma oblatifolia Villarreal - Coahuila Hedeoma oblongifolia (A.Gray) A.Heller – Oblongleaf false pennyroyal - Chihuahua, Sonora, New Mexico, Arizona Hedeoma palmeri Hemsl. - San Luis Potosí, Nuevo León, Coahuila Hedeoma patens M.E. Jones –oregano chiquito - Chihuahua, Coahuila Hedeoma patrina W.S.Stewart - Zacatecas †Hedeoma pilosa R.S.Irving – Old blue false pennyroyal - Brewster County in Texas but apparently extinct Hedeoma piperita Benth. - Hidalgo, México State Hedeoma plicata Torr. – Veiny false pennyroyal - Texas, Arizona, New Mexico, northern Mexico Hedeoma polygalifolia Benth. - southern Brazil Hedeoma pulcherrima Wooton & Standl. – White Mountain false pennyroyal - New Mexico Hedeoma pulegioides (L.) Pers. – American false pennyroyal - eastern Canada, central + eastern United States Hedeoma pusilla (R.S.Irving) R.S.Irving - Nuevo León Hedeoma quercetora Epling - Nuevo León Hedeoma reverchonii (A.Gray) A.Gray – Reverchon's false pennyroyal - southern Great Plains (Texas, Oklahoma, western Arkansas) Hedeoma rzedowskii B.L.Turner - Aguascalientes, San Luis Potosí Hedeoma × serpyllifolia Small - Texas, New Mexico Hedeoma tenuiflora Brandegee - Baja California Hedeoma tenuipes Epling - northeastern Mexico Hedeoma todsenii R.S.Irving – Todsen's false pennyroyal - New Mexico
Formerly placed here Clinopodium glabrum (Nutt.) Kuntze (as H. arkansana Nutt.) Poliomintha incana (Torr.) A.Gray (as H. incana Torr.)
References
External links
USDA state-by-state US distribution map of Hedeoma Jepson Manual Treatment