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Palomar monkeyflower

Habit Annuals, taprooted.
Stems

erect, simple or branched from basal nodes, 4–20 cm, minutely puberulent.

Leaves

cauline, basal not persistent;

petiole 0 mm;

blade 1-veined or palmately 3-veined (in broader ones), lanceolate to ovate, 3–20 × 1–6 mm, base attenuate, margins entire, sometimes toothed, apex acute, surfaces minutely puberulent.

Flowers

herkogamous, 1–36, from distal or medial to distal nodes.

Styles

distally pubescent.

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.

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.

Capsules

included, 5–8 mm.

Stigmas

distinctly shorter than corolla tube.

Anthers

included, glabrous.

Erythranthe diffusa

Phenology Flowering Apr–Jun.
Habitat Moist areas in openings of chaparral, dry meadows in pine and oak woodlands.
Elevation 300–1800 m. (1000–5900 ft.)
Distribution
from FNA
CA; Mexico (Baja California)
[WildflowerSearch map]
Discussion

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.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 17, p. 387.
Parent taxa Phrymaceae > Erythranthe
Sibling taxa
E. acutidens, E. alsinoides, E. ampliata, E. androsacea, E. arenaria, E. arenicola, E. arvensis, E. barbata, E. bicolor, E. brachystylis, E. breviflora, E. breweri, E. caespitosa, E. calcicola, E. calciphila, E. cardinalis, E. carsonensis, E. charlestonensis, E. chinatiensis, E. cinnabarina, E. corallina, E. cordata, E. decora, E. dentata, E. discolor, E. eastwoodiae, E. erubescens, E. exigua, E. filicaulis, E. filicifolia, E. floribunda, E. gemmipara, E. geniculata, E. geyeri, E. glaucescens, E. gracilipes, E. grandis, E. grayi, E. guttata, E. hallii, E. hardhamiae, E. hymenophylla, E. inamoena, E. inconspicua, E. inflatula, E. jungermannioides, E. laciniata, E. latidens, E. lewisii, E. linearifolia, E. marmorata, E. michiganensis, E. microphylla, E. minor, E. montioides, E. moschata, E. nasuta, E. norrisii, E. nudata, E. palmeri, E. pardalis, E. parishii, E. parvula, E. patula, E. percaulis, E. primuloides, E. ptilota, E. pulsiferae, E. purpurea, E. regni, E. rhodopetra, E. rubella, E. scouleri, E. shevockii, E. sierrae, E. suksdorfii, E. taylorii, E. thermalis, E. tilingii, E. trinitiensis, E. unimaculata, E. utahensis, E. verbenacea, E. washingtonensis, E. willisii
Synonyms Mimulus diffusus, M. grantianus
Name authority (A. L. Grant) N. S. Fraga: Phytoneuron 2012-39: 35. (2012)
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