Flora of North America species comparison

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Erythranthe ptilota

Erythranthe montioides

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

montia-like monkeyflower, mountain monkeyflower
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, 2–15 cm, glabrous or minutely puberulent, internodes elongate, distinct.
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 0 mm;

blade 1-veined or palmately 3-veined (in broader ones), linear to lanceolate, (3–)4–25 × 0.5–2 mm, base attenuate, margins entire, apex acute, surfaces glabrous or minutely puberulent.
Flowers

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

herkogamous, 1–6, 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.

yellow, abaxial limb red-spotted, bilaterally symmetric, strongly bilabiate;

tube-throat cylindric to funnelform, 6–10 mm, exserted beyond calyx margin;

limb expanded 5–12 mm, lateral lobes entire or shallowly notched, palate glabrous or sparsely bearded.
Fruiting pedicels

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

(4–)5–20 mm.
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.

becoming straw colored, campanulate, 5–7 mm, margins distinctly toothed or lobed, ciliate, glabrous or minutely puberulent, ribs weak, lobes pronounced, erect.
Capsules

included, 6–8 mm.

included, 5–6 mm.
Anthers

included, finely hirtellous to hispidulous.

included, glabrous.

Erythranthe ptilota

Erythranthe montioides
Phenology Flowering (May–)Jun–Aug. Flowering Jun–Aug.
Habitat Creek banks, gravel bars, flood plains, shallow ditches and natural drainages, swales, damp banks, wet sand, moist soils in coniferous woods, marshes, bogs. Sandy opening in mixed coniferous and lodgepole forests.
Elevation 0–1000(–1900) m. (0–3300(–6200) ft.) 1900–2900 m. (6200–9500 ft.)
Distribution
from FNA
CA; OR; WA; BC
[WildflowerSearch map]
from FNA
CA
[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.)

Erythranthe montioides has been previously treated as a highly polymorphic species with a relatively broad geographic range but is now recognized as narrowly endemic to Fresno and north-central Tulare counties. The following species were segregated from E. montioides: E. barbata, E. calcicola, E. carsonensis, and E. discolor.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 402. FNA vol. 17, p. 385.
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. 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. 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 Mimulus montioides
Name authority G. L. Nesom: Phytoneuron 2017-17: 4. (2017) (A. Gray) N. S. Fraga: Phytoneuron 2012-39: 35. (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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