Flora of North America species comparison

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Erythranthe breweri

Erythranthe scouleri

Brewer's monkey-flower

Columbia River monkey-flower, Scouler's monkey-flower
Habit Annuals, taprooted. Perennials, rhizomatous, producing long, sparsely leafy runners from basal nodes.
Stems

erect, simple or branched from basal nodes, 2–20 cm, densely glandular-puberulent, hairs 0.05–0.1 mm, gland-tipped.

erect, simple or few-branched, 15–80 cm, glabrous.
Leaves

cauline, basal not persistent;

petiole 1–4 mm;

blade 1-veined or palmately 3-veined (in broader ones), linear-oblanceolate to linear-lanceolate or linear, (5–)10–15(–20) × 1–2(–5) mm, base attenuate, margins entire or remotely mucronulate distally, apex acute, surfaces densely glandular-puberulent, hairs 0.05–0.1 mm, gland-tipped.

cauline, basal usually not persistent;

petiole: proximals and medial 10–25 mm (gradually merging into blade), distals 0 mm;

blade palmately (3–)5–7-veined to subpinnate, (proximal to medial) oblong-elliptic to oblong-lanceolate, 25–60 × 8–18 mm, usually 3–4 times longer than wide, base attenuate, margins evenly, shallowly dentate or crenate to mucronate or mucronulate, teeth 10–20 per side, sometimes more deeply toothed at base, apex obtuse to acute, surfaces glabrous.
Flowers

herkogamous, 1–8, from medial to distal nodes.

herkogamous, (1 or)2–8, from distal nodes.
Styles

glabrous.

minutely, prominently hirsutulous to villosulous.
Corollas

pink to red, rose red, red-purple, or lavender, throat usually light purple to lavender (similar in color to rest of corolla), palate ridges yellow, abaxial limb with deep pink markings, bilaterally symmetric, strongly bilabiate;

tube-throat cylindric-funnelform, 3–7 mm, exserted 0–1 mm beyond calyx margin;

limb expanded 2–3 mm, lobes notched or entire.

yellow, without red markings, bilaterally symmetric, bilabiate;

tube-throat funnelform, 20–24 mm, exserted 10–15 mm beyond calyx margin;

limb expanded 22–30 mm.
Fruiting pedicels

4–12 mm, densely glandular-puberulent, hairs 0.05–0.1 mm, gland-tipped.

20–25 mm, glabrous.
Fruiting calyces

red-dotted, strongly angled, cylindric-campanulate, 4–7 mm, margins distinctly toothed or lobed, densely glandular-puberulent, hairs 0.05–0.1 mm, gland-tipped, ribs corky, lobes pronounced, spreading.

ovoid, inflated, sagittally compressed, 13–14 mm, glabrous, throat closing.
Capsules

included, 3–7 mm.

unknown.
Anthers

included, glabrous.

included, glabrous.

Erythranthe breweri

Erythranthe scouleri
Phenology Flowering Jun–Aug(–Sep). Flowering May–Aug.
Habitat Seeps and springs, damp rocks, vernal creek beds, cliffs, granite outcrops, rocky ridges, gravelly areas, meadow edges, stream edges. Salt marshes, river banks.
Elevation (700–)1300–3500 m. ((2300–)4300–11500 ft.) 0–20 m. (0–100 ft.)
Distribution
from FNA
AZ; CA; ID; MT; NV; OR; UT; WA; WY; AB; BC
[WildflowerSearch map]
from FNA
OR; WA
Discussion

Erythranthe scouleri is distinctive in its oblong-elliptic leaves with long-tapering bases and closely toothed margins, completely glabrous vestiture, long, leafy runners from basal cauline nodes, large corollas with broad limbs, and prominently hairy styles. Several features suggest a close relationship to E. decora, particularly its very large corollas, hairy styles, closely toothed leaf margins, tall, simple, and erect stems, numerous runners, and its geographic range. All collections apparently have been made near the mouth of the Columbia River in Clatsop and Columbia counties, Oregon (G. L. Nesom 2013d). Recent observations (Alexander John Wright, pers. comm.; photos http://www.inaturalist.org/observations/3537008) indicate that it also occurs in Wahkiakum County, Washington, in the Julia Butler Hansen Refuge.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 390. FNA vol. 17, p. 415.
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. 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. washingtonensis, 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. 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. shevockii, E. sierrae, E. suksdorfii, E. taylorii, E. thermalis, E. tilingii, E. trinitiensis, E. unimaculata, E. utahensis, E. verbenacea, E. washingtonensis, E. willisii
Synonyms Eunanus breweri, Mimulus breweri, M. rubellus var. breweri Mimulus scouleri, M. guttatus subsp. scouleri
Name authority (Greene) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 36. (2012) (Hooker) 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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