Flora of North America species comparison

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Erythranthe washingtonensis

Erythranthe marmorata

John Day or Washington monkeyflower, Washington monkey-flower

Stanislaus monkeyflower, Whipple's monkeyflower
Habit Annuals, fibrous-rooted or filiform-taprooted. Annuals, taprooted.
Stems

erect to ascending, straight or geniculate at nodes, usually many-branched, terete, 5–25 cm, moderately puberulent-glandular to villous-glandular, hairs 0.1–0.8 mm, flattened, sometimes vitreous, distinctly multicellular, gland-tipped.

erect, simple or branched from base, 7–28 cm, usually moderately to densely villous-glandular, without eglandular hairs.
Leaves

cauline, basal not persistent;

petiole 2–14 mm;

blade palmately veined, deltate or ovate to ovate-lanceolate, 4–16(–23) × 2–11(–16) mm, base rounded to cuneate or truncate, margins denticulate or entire, apex acute, surfaces moderately puberulent-glandular to villous-glandular, hairs 0.1–0.8 mm, flattened, sometimes vitreous, distinctly multicellular, gland-tipped.

usually cauline or basal persistent;

petiole: proximals to medials 7–15 mm, distals 0 mm;

blade palmately (3–)5-veined, ovate or broadly ovate to elliptic-ovate or depressed-ovate, (10–)15–30 × 6–15 mm, base truncate to shallowly cuneate, margins shallowly to coarsely dentate, apex acute, surfaces usually moderately to densely villous-glandular, without eglandular hairs.
Flowers

herkogamous, 1–6, from proximal to distal nodes.

herkogamous, (1–)2–6, axillary from middle to distal nodes, chasmogamous.
Styles

hispid-hirtellous.

glabrous or sparsely hirtellous.
Corollas

yellow with small reddish brown dots, abaxial limb with 2 white patches (abaxial ridges), bilaterally symmetric, strongly bilabiate;

tube-throat funnelform, 8–10 mm, exserted beyond calyx margin;

limb expanded 7–10 mm, lobes obovate-oblong, apex rounded to rounded-cuneate.

yellow, throat red-spotted, abaxial limb base with a large red splotch, bilaterally symmetric, bilabiate;

tube-throat narrowly cylindric-funnelform, 10–12 mm, exserted 4–5 mm beyond calyx margin;

limb abruptly expanded 14–20 mm.
Fruiting pedicels

divergent at nearly right angles, 20–50 mm, densely, minutely stipitate-glandular.

15–45 mm, usually moderately to densely villous-glandular, without eglandular hairs.
Fruiting calyces

greenish, ridge-angled, tubular, weakly inflated, 6–8 mm, margins distinctly toothed or lobed, densely, minutely stipitate-glandular, lobes pronounced, erect.

sharply nodding, usually densely purple-spotted, broadly campanulate, inflated, sagittally compressed, 9–12 mm, densely hirtellous, sometimes sparsely stipitate-glandular, densely villous at sinuses, throat closing, adaxial lobe ca. 2 times length of others.
Capsules

included, 5–8.5 mm.

included, 6–9 mm.
Anthers

included, glabrous.

included, glabrous.
2n

= 32.

Erythranthe washingtonensis

Erythranthe marmorata
Phenology Flowering May–Sep. Flowering Mar–May.
Habitat Shallow basalt gravel in narrow channels and intermittent streams, sandy stream banks, open slopes, rocky shelves near seeps. Habitat unknown, not over serpentine.
Elevation 700–1300 m. (2300–4300 ft.) 100–900 m. (300–3000 ft.)
Distribution
from FNA
OR
[WildflowerSearch map]
from FNA
CA
Discussion

Erythranthe washingtonensis is considered to be extirpated in Washington by the Washington Natural Heritage Program.

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

Erythranthe marmorata is recognized by its erect, taprooted habit and annual duration, villous-glandular vestiture, ovate-petiolate leaves, flowers from middle to distal nodes, long, narrow corolla tube-throat abruptly flaring into a broad limb, abaxial middle corolla lobe with a large red splotch, and fruiting calyces dark-spotted and sharply nodding. The species is known from foothills in Calaveras, Stanislaus, and Tuolumne counties in the Stanislaus River drainage and from Amador County in the Mokelumne River drainage. A collection from Fresno County appears to be somewhat disjunct from the main range, and the plants are more densely villous than characteristic elsewhere, but their identification as E. marmorata otherwise seems secure.

Erythranthe marmorata (previously identified as Mimulus whipplei) had been considered extremely rare or even perhaps extinct. See G. L. Nesom (2013d) for citations of recent collections.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 396. FNA vol. 17, p. 416.
Parent taxa Phrymaceae > Erythranthe 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. diffusa, 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. willisii
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. diffusa, 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. 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 washingtonensis Mimulus marmoratus, M. whipplei
Name authority (Gandoger) G. L. Nesom: Phytoneuron 2012-39: 39. (2012) — (as washingtoniensis) (Greene) G. L. Nesom: Phytoneuron 2012-39: 44. (2012)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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