Hedeoma diffusa is a species of flowering plant in the mint family known by the common names spreading false pennyroyal and Flagstaff false pennyroyal. It is endemic to Arizona in the United States.[1][2]

Hedeoma diffusa

Vulnerable  (NatureServe)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Lamiaceae
Genus: Hedeoma
Species:
H. diffusa
Binomial name
Hedeoma diffusa
Greene 1898

This perennial herb has spreading, prostrate stems that form a mat on the ground. The leaves are oppositely arranged. The flowers are blue to lavender in color and are open for about three days. Blooming occurs in May through September.[2]

This plant is limited to northern Arizona, occurring in Navajo, Coconino, and Yavapai Counties.[1] It grows on Kaibab Limestone, in and around rocky cracks and crevices. In Oak Creek Canyon in the Red Rock-Secret Mountain Wilderness Area, sites are considered protected, and most are inaccessible.[2]

References

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  1. ^ a b c Hedeoma diffusa. The Nature Conservancy.
  2. ^ a b c Hedeoma diffusa. Archived 2011-10-26 at the Wayback Machine Center for Plant Conservation.
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