Flora of North America species comparison

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Erythranthe tilingii

Erythranthe unimaculata

larger mountain monkeyflower, mountain monkey-flower, Tiling's monkey-flower

green-palate monkeyflower
Habit Perennials, rhizomatous, solitary to weakly colonial, rhizomes forming a mass, yellowish, branching, filiform. Annuals, shallowly fibrous-rooted or slender-taprooted, sometimes rooting at proximal nodes.
Stems

erect-ascending, usually freely branched, 2–35 cm, glabrous or sparsely stipitate-glandular to short glandular-villous.

erect or basally ascending-erect, simple or few-branched, becoming fistulose in larger plants, (2–)10–30(–100) cm, delicately short glandular-villous to stipitate-glandular, often glabrous below inflorescence.
Leaves

cauline;

petiole 0–25 mm, distals 0 mm;

blade palmately 3–5-veined, ovate to lanceolate-triangular or narrowly lanceolate (broadly ovate in large-leaved forms), 5–35(–55) mm, base cuneate to attenuate, margins irregularly denticulate, apex acute to obtuse or rounded, surfaces glabrous, sparsely stipitate-glandular to short glandular-villous, glabrate, or sparsely to moderately villous, hairs thick-vitreous, eglandular.

usually cauline, basal sometimes persistent, distal connate-perfoliate, often bractlike;

petiole: proximals 4–10(–15) mm, distals 0 mm;

blade: proximals sometimes subpinnately veined, usually with (1 or)2 pairs arising from midvein above base, becoming palmately veined distally, ovate-lanceolate to ovate or broadly ovate-elliptic, mid cauline 12–40(–50) × 10–25(–45) mm, base rounded to truncate or cuneate, margins shallowly dentate-serrate to serrate, teeth 7–12 per side, apex rounded to obtuse, surfaces glabrous, sometimes with sharp-pointed hirtellous, vitreous-flattened, or gland-tipped hairs.
Flowers

herkogamous, 1–3(–5), from distal nodes.

herkogamous, (1–)3–14, usually from mid stem and distally, chasmogamous.
Styles

hirtellous.

hirtellous.
Corollas

yellow, red-dotted, bilaterally symmetric, bilabiate;

tube-throat broadly funnelform, 15–28 mm, exserted 5–10 mm beyond calyx margin;

limb expanded 14–30 mm.

pale yellow, palate and abaxial throat dark yellow, drying blue-green, red-spotted, bilaterally symmetric, bilabiate;

tube-throat funnelform to subfunnelform, (7–)9–14 mm, exserted 3–4 mm beyond calyx margin;

limb broadly expanded (8–17 mm pressed), palate densely bearded.
Fruiting pedicels

15–35(–40) mm, sparsely stipitate-glandular to short glandular-villous.

10–40 mm, delicately short glandular-villous to stipitate-glandular, often glabrous below inflorescence.
Fruiting calyces

usually purple-tinged and purple-dotted, broadly campanulate, inflated, sagittally compressed, 11–15 mm, glabrous or sparsely stipitate-glandular to short glandular-villous, villous at sinuses, throat closing, lobes broadly ovate, abaxial usually longer than lateral, adaxial at least 2 times as long as others.

nodding 30–90º, broadly campanulate, inflated, sagittally compressed, 9–13(–15) mm, sparsely glandular-villous to stipitate-glandular, throat closing, adaxial lobe distinctly longer.
Capsules

included, 5–7 mm.

included, 5–8 mm.
Anthers

included, glabrous.

included, glabrous.
2n

= 28, 56.

= 28.

Erythranthe tilingii

Erythranthe unimaculata
Phenology Flowering Jul–Sep. Flowering Jan–Jun.
Habitat Seeps, springs, stream banks, shallow rivulets, cliff bases, ledges and crevices, steep gravelly slopes, wet meadows. Stream and canal sides, pool edges, canyon bottoms, sand, gravel, and mud, riparian habitats, pine-oak forests.
Elevation 1400–3400 m. (4600–11200 ft.) 200–2000 m. (700–6600 ft.)
Distribution
from FNA
AZ; CA; ID; MT; NV; OR; UT; AB
[WildflowerSearch map]
from FNA
AZ; NM; Mexico (Chihuahua, Sonora)
Discussion

Plants of Erythranthe tilingii are characterized by their relatively low stature and stems arising from a system of thin rhizomes and producing mostly one to three large flowers each; they usually occur at relatively high elevations. Erythranthe tilingii sometimes has been considered to include one or several infraspecific entities; from within this taxonomic amalgam, four distinct species are recognized here: E. caespitosa, E. corallina, E. minor, and E. tilingii. Erythranthe corallina and E. minor probably are more closely related to E. guttata. The populations identified here as E. tilingii from northeastern Oregon northeast to Alberta and southeast to Utah may prove to be a separate (undescribed) species.

Erythranthe tilingii in the strict sense is relatively widespread over the western United States and is sympatric with E. caespitosa and E. corallina. Leaves in E. tilingii are variable in size, and particularly in Idaho, they may approach the small size of those of E. caespitosa, but the leaf margins of E. tilingii are distinctly toothed, and the stems are taller and more erect. Across the range of the species, plants sometimes produce very large leaves, but these often occur on plants with characteristically smaller leaves. This wide variability in size apparently does not occur in E. caespitosa.

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

Erythranthe unimaculata is recognized by its annual duration (fibrous-rooted, without stolons or rhizomes), delicate-glandular vestiture, mostly sessile to subsessile, often widely spaced leaves, closed fruiting calyces, and relatively large, pale yellow to nearly white corollas with a dark yellow palate that commonly dries blue-green. The breeding system is allogamous. Plants commonly are single-stemmed and usually erect but sometimes produce decumbent-ascending stems branching from the base, these sometimes rooting at proximal nodes.

Erythranthe unimaculata is known from Cochise, Gila, Pima, and Santa Cruz counties, Arizona, and from Doña Ana County, New Mexico.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 408. FNA vol. 17, p. 413.
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. 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. scouleri, E. shevockii, E. sierrae, E. suksdorfii, E. taylorii, E. thermalis, E. tilingii, E. trinitiensis, E. utahensis, E. verbenacea, E. washingtonensis, E. willisii
Synonyms Mimulus tilingii, M. caespitosus var. implexus, M. implexus, M. implicatus, M. langsdorffii var. tilingii, M. lucens, M. veronicifolius Mimulus unimaculatus
Name authority (Regel) G. L. Nesom: Phytoneuron 2012-39: 44. (2012) (Pennell) 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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