Flora of North America species comparison

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Erythranthe ptilota

Erythranthe breweri

musk monkeyflower, musk-flower, sessile-leaf monkey-flower, wing-leaf monkeyflower

Brewer's monkey-flower
Habit Perennials, rhizomatous, sometimes rooting at proximal nodes. Annuals, taprooted.
Stems

prostrate, sometimes decumbent to ascending, few-branched, 20–80 cm, villous, hairs 1–2 mm, eglandular, sometimes mixed with much shorter stipitate-glandular ones, internodes evident.

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

cauline, basal not persistent, often congested;

petiole 0 mm, rarely 1–2(–3) mm;

blade pinnately veined, oblong-lanceolate, 30–70 × 10–22 mm, base rounded, margins denticulate to dentate, apex acute, surfaces villous, hairs 1–2 mm, eglandular, sometimes mixed with much shorter stipitate-glandular ones.

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.
Flowers

herkogamous, 4–10, from medial to distal nodes.

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

glabrous.

glabrous.
Corollas

yellow, throat with fine blackish or brownish lines on all sides, weakly bilaterally or nearly radially symmetric, weakly bilabiate or nearly regular;

tube-throat narrowly campanulate, 15–18 mm, exserted beyond calyx margin;

lobe apex rounded.

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.
Fruiting pedicels

(15–)22–50 mm, villous, hairs 1–2 mm, eglandular, sometimes mixed with much shorter stipitate-glandular ones.

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

wing- or plicate-angled, cylindric-campanulate, weakly inflated, 10–12 mm, villous-glandular, hairs gland-tipped, lobes distinctly spreading, strongly unequal, linear-lanceolate to narrowly triangular, 5–9 mm, apex long acuminate-apiculate.

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.
Capsules

included, 6–8 mm.

included, 3–7 mm.
Anthers

included, finely hirtellous to hispidulous.

included, glabrous.

Erythranthe ptilota

Erythranthe breweri
Phenology Flowering (May–)Jun–Aug. Flowering Jun–Aug(–Sep).
Habitat Creek banks, gravel bars, flood plains, shallow ditches and natural drainages, swales, damp banks, wet sand, moist soils in coniferous woods, marshes, bogs. Seeps and springs, damp rocks, vernal creek beds, cliffs, granite outcrops, rocky ridges, gravelly areas, meadow edges, stream edges.
Elevation 0–1000(–1900) m. (0–3300(–6200) ft.) (700–)1300–3500 m. ((2300–)4300–11500 ft.)
Distribution
from FNA
CA; OR; WA; BC
[WildflowerSearch map]
from FNA
AZ; CA; ID; MT; NV; OR; UT; WA; WY; AB; BC
[WildflowerSearch map]
Discussion

Erythranthe ptilota is recognized by its prostrate to decumbent or decumbent-ascending habit, large, consistently sessile leaves, densely villous vestiture, long pedicels, large calyces and corollas, hispid-hirtellous anthers, and particularly by its long, strongly unequal, linear-triangular calyx lobes usually distally falcate. Leaf bases typically are truncate to rounded or subcordate. Rarely the leaves are short-petiolate, but in such cases, the distinctive leaf bases, vestiture, calyx morphology, and pubescent anthers are diagnostic. Erythranthe ptilota is widely sympatric with E. moschata but usually occurs at lower elevations and characteristically in wetter habitats. The epithet ptilota (Greek ptilotos, winged) alludes to a fancied winglike aspect of the pairs of sessile leaves.

A population system of Erythranthe ptilota-like plants occurs in southern California, about 480 km disjunct from the main range of the species. These plants have the prostrate habit, large leaves, long pedicels, and large corollas of E. ptilota, but the calyx lobes are variable in length and usually do not show the characteristic attenuate-apiculate apices. The southern California plants are identified here as E. moschata.

Erythranthe ptilota is a new name at specific rank for Mimulus moschatus var. sessilifolius [not E. sessilifolia (Maximowicz) G. L. Nesom].

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 402. FNA vol. 17, p. 390.
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. 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. 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
Synonyms Mimulus moschatus var. sessilifolius Eunanus breweri, Mimulus breweri, M. rubellus var. breweri
Name authority G. L. Nesom: Phytoneuron 2017-17: 4. (2017) (Greene) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 36. (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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