Rare Plant Identifiers
Latin Name: Hedeoma diffusa
Common Names: spreading false pennyroyal
Designations: Salvage Restricted (Arizona), Center for Plant Conservation (CPC) Rare
Visit Hedeoma diffusa on the USDA PLANTS Database by clicking HERE.
Visit Linaria dalmatica on the USDA PLANTS Database by clicking HERE.
Visit Pluchea carolinensis on the USDA PLANTS Database by clicking HERE.
A study in 1993 found that cool burns may lead to favorable increases in Hedeoma diffusa recruitment, years later, sites with burns had significant invasion by the exotic plant Linaria dalmatica (Philips and Crisp 2000).
•Phillips, B.G.; Crisp, D.L. Dalmatian toadflax, an invasive exotic noxious weed, threatens Flagstaff pennyroyal community following prescribed fire. Southwestern rare and endangered plants: proceedings of the third conference; September 25-28; Flagstaff, AZ. In: Maschinski, Joyce; Holter, Louella, editors. 2000. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. Fort Collins, CO (Proceedings RMRS-P-23). p 200-205.