Hedeoma

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.

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.

Species

1. Hedeoma acinoidesScheele – Slender false pennyroyal - Texas, Oklahoma, Coahuila
2. W.S.Stewart – McKittrick's false pennyroyal - western Texas, southeastern New Mexico
3. (Epling) R.S.Irving - Jalisco
4. (Henrard) B.L.Turner - Chihuahua
5. (Epling & W.S.Stewart) R.S.Irving - Gypsum false pennyroyal - Nuevo León
6. Hemsl. – Ribbed false pennyroyal - Mexico, Guatemala, Texas, Arizona, New Mexico
7. R.S.Irving - Rio de Janeiro
8. Torr. – Dentate false pennyroyal - Arizona, Sonora, New Mexico
9. Hedeoma diffusaGreene – Spreading (or Flagstaff) false pennyroyal - Nevada, Arizona
10. Hedeoma drummondiiBenth. – Drummond's false pennyroyal - western United States, Alabama, Mississippi, Nuevo León, Coahuila, Chihuahua, Sonora
11. Standl. - Chihuahua
12. Pursh – Rough false pennyroyal - Canada, central + eastern United States (especially the Great Plains)
13. Hedeoma hyssopifoliaA.Gray – Aromatic false pennyroyal - northern Mexico, New Mexico, Arizona
14. R.S.Irving - Coahuila
15. Greene - Durango
16. Wedd. - Peru, Bolivia, Jujuy Province of Argentina
17. Moran - Baja California
18. Moran - Baja California
19. Epling - Argentina, Uruguay
20. R.S.Irving - San Luis Potosí
21. Torr. – Softhair false pennyroyal - western Texas
22. Brandegee - Coahuila
23. Benth - Argentina, Uruguay, southern Brazil
24. Hedeoma nana(Torr.) Briq. – Dwarf false pennyroyal - Chihuahua, Texas, New Mexico, Arizona, Utah, Nevada, Mohave Desert in California
25. Villarreal - Coahuila
26. (A.Gray) A.Heller – Oblongleaf false pennyroyal - Chihuahua, Sonora, New Mexico, Arizona
27. Hemsl. - San Luis Potosí, Nuevo León, Coahuila
28. Hedeoma patensM.E. Jones –oregano chiquito - Chihuahua, Coahuila
29. W.S.Stewart - Zacatecas
30. †R.S.Irving – Old blue false pennyroyal - Brewster County in Texas but apparently extinct
31. Benth. - Hidalgo, México State
32. Torr. – Veiny false pennyroyal - Texas, Arizona, New Mexico, northern Mexico
33. Benth. - southern Brazil
34. Wooton & Standl. – White Mountain false pennyroyal - New Mexico
35. Hedeoma pulegioides(L.) Pers. – American false pennyroyal - eastern Canada, central + eastern United States
36. (R.S.Irving) R.S.Irving - Nuevo León
37. Epling - Nuevo León
38. Hedeoma reverchonii(A.Gray) A.Gray – Reverchon's false pennyroyal - southern Great Plains (Texas, Oklahoma, western Arkansas)
39. B.L.Turner - Aguascalientes, San Luis Potosí
40. Small - Texas, New Mexico
41. Brandegee - Baja California
42. Epling - northeastern Mexico
43. Hedeoma todseniiR.S.Irving – Todsen's false pennyroyal - New Mexico