Article · Wikipedia archive · Last revised Jun 8, 2026

Erythranthe diffusa

Erythranthe diffusa, also known as Palomar monkeyflower, is a species of plant native to North America. This plant is endemic to the Californias, and is considered a rare plant due to its limited range. E. diffusa grows up to 8 in (20 cm) in height, and produces purple, pink, and yellow flowers. It prefers to grow in gravelly or sandy soil in chaparral or a low-elevation coniferous habitat. E. diffusa has been observed in Los Angeles County, Orange County, Riverside County, San Diego County, Santa Clara County, and Baja California. The Palomar monkeyflower is threatened by recreational activities and real estate development of its preferred wild habitat.

Last revised
Jun 8, 2026
Read time
≈ 1 min
Length
190 w
Citations
6
Source
Wikipedia ↗
Erythranthe diffusa
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
Clade: Tracheophytes
Clade: Spermatophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Phrymaceae
Genus: Erythranthe
Species:
E. diffusa
Binomial name
Erythranthe diffusa
(A.L.Grant) N.S.Fraga
Synonyms

Mimulus diffusus A.L.Grant

Erythranthe diffusa, also known as Palomar monkeyflower, is a species of plant native to North America.1 This plant is endemic to the Californias, and is considered a rare plant due to its limited range.2 E. diffusa grows up to 8 in (20 cm) in height, and produces purple, pink, and yellow flowers.3 It prefers to grow in gravelly or sandy soil in chaparral or a low-elevation coniferous habitat.2 E. diffusa has been observed in Los Angeles County, Orange County, Riverside County, San Diego County, Santa Clara County, and Baja California.2 The Palomar monkeyflower is threatened by recreational activities and real estate development of its preferred wild habitat.2

References

References

  1. "Erythranthe diffusa (Palomar monkeyflower)". iNaturalist. Retrieved 2024-05-01.
  2. "Erythranthe diffusa". Rare Plant Inventory (online edition, v9.5). California Native Plant Society, Rare Plant Program (rareplants.cnps.org). 2024. Retrieved 2024-05-02.
  3. "Mimulus diffusus (MIDI, USDA Native Status: L48)". Lady Bird Johnson Wildflower Center (wildflower.org). University of Texas at Austin. Retrieved 2024-05-02.