Native Plants
Plant Database
Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.
Erythranthe diffusa
Erythranthe diffusa (A.L.Grant)N.S.Fraga
Palomar Monkey-flower, Palomar Monkeyflower
Phrymaceae (Lopseed Family)
Synonym(s): Mimulus diffusus, Mimulus grantianus
USDA Symbol: ERDI6
USDA Native Status: L48 (N)
"Annuals, taprooted. Stems erect, simple or branched from basal nodes, 4-20 cm, minutely puberulent." (Webref: 38).
"Erythranthe diffusa has been included previously in E. palmeri but can be distinguished morphologically by glabrous margins on the calyx and pubescence on the distal end of the style. It occurs in Orange, Riverside, and San Diego counties as well as close to the California border in Baja California." (Webref: 38).
From the Image Gallery
No images of this plant
Plant Characteristics
Duration: AnnualHabit: Herb
Fruit Type: Capsule , Caryopsis
Size Notes: Up to about 8 inches tall.
Leaf: "Leaves cauline, basal not persistent; petiole 0 mm; blade 1-veined or palmately 3-veined (in broader ones), lanceolate to ovate, 3-20 x 1-6 mm, base attenuate, margins entire, sometimes toothed, apex acute, surfaces minutely puberulent." (Webref: 38).
Flower: "Flowers herkogamous, 1-36, from distal or medial to distal nodes. Fruiting pedicels ascending to spreading horizontally, (2-)12-60(-68) mm. Fruiting calyces sometimes red-dotted, campanulate, 3-6 mm, margins distinctly toothed or lobed, minutely puberulent, ribs weak, lobes pronounced, erect, margins glabrous. Corollas pink to purple, abaxial limb with 2 yellow palate ridges, bilaterally symmetric, weakly bilabiate; tube-throat funnelform, (3-)6-10 mm, exserted beyond calyx margin; limb expanded 3-14 mm, lobes notched, adaxial limb glabrous, sometimes sparsely bearded. Styles distally pubescent. Stigmas distinctly shorter than corolla tube. Anthers included, glabrous." (Webref: 38).
Fruit: "Capsules included, 5-8 mm." (Webref: 38).
Bloom Information
Bloom Color: Pink , Yellow , PurpleBloom Time: Apr , May , Jun
Bloom Notes: "Phenology: Flowering Apr-Jun." (Webref: 38).
Distribution
USA: CANative Distribution: Southern California and northern Baja California, Mexico.
Native Habitat: "Habitat: Moist areas in openings of chaparral, dry meadows in pine and oak woodlands." (Webref: 38).
Growing Conditions
Water Use: MediumLight Requirement: Sun , Part Shade
Soil Moisture: Moist
Web Reference
Webref 30 - Calflora (2018) CalfloraWebref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter
Research Literature
Reslit 3205 - A Revision of Erythranthe montioides and Erythranthe palmeri (Phrymaceae), with Descriptions of Five New Species from California and Nevada, USA (2012) Fraga, N.S.This information was provided by the Florida WIldflower Foundation.
Search More Titles in Research Literature
Additional resources
USDA: Find Erythranthe diffusa in USDA PlantsFNA: Find Erythranthe diffusa in the Flora of North America (if available)
Google: Search Google for Erythranthe diffusa
Metadata
Record Modified: 0000-00-00Research By: Joseph A. Marcus