Flora of North America species comparison

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Erythranthe erubescens

Erythranthe utahensis

California blushing monkeyflower

Utah monkeyflower
Habit Perennials, rhizomatous. Perennials, rhizomatous, rooting at nodes, rhizomes filiform.
Stems

erect, usually simple, 25–90 cm, stipitate-glandular to glandular-villous.

erect, sometimes decumbent-ascending proximally, simple or few-branched, 20–50 cm, glabrous or sparsely stipitate-glandular in inflorescence.
Leaves

cauline;

petiole 0 mm;

blade palmately veined, elliptic to ovate, ovate-lanceolate, or lanceolate, (20–)30–90 × 5–25(–35) mm, base rounded to cuneate, subclasping, margins denticulate, subentire, or entire, apex acute, surfaces stipitate-glandular to glandular-villous.

basal and cauline, even-sized or largest near mid stem;

petiole 0 mm or proximalmost 2–10 mm;

blade palmately 3–5-veined, orbicular or suborbicular to broadly elliptic, broadly ovate, or depressed-ovate, 20–40(–75) × 12–35(–40) mm, base usually truncate to broadly cuneate, margins entire or subentire to mucronulate, shallowly dentate, or denticulate, apex rounded, surfaces glabrous or glabrate to sparsely stipitate-glandular and sparsely pilose, hairs thin-walled, abaxial often glaucous.
Flowers

herkogamous, 2–8, axillary at leafy medial to distal nodes.

herkogamous, 6–16, from proximal to distal nodes, in a loose raceme, distal bracts becoming much reduced.
Styles

glabrous.

hirtellous.
Corollas

light pink, darker pink stripes down middle of each lobe, abaxial 3 lobes with a white basal patch, palate ridges yellow, bilaterally symmetric, strongly bilabiate;

tube-throat funnelform, 20–30 mm, exserted beyond calyx margins;

lobe apex usually truncate, shallowly retuse, throat open.

yellow, abaxial limb prominently darker yellow, sparsely purple-spotted, bilaterally symmetric, weakly bilabiate;

tube-throat narrowly funnelform to broadly cylindric, 10–15 mm, exserted 5–8 mm beyond calyx margin;

limb expanded 12–20 mm.
Fruiting pedicels

45–90 mm.

(25–)40–75 mm, stipitate-glandular to short villous, hairs gland-tipped.
Fruiting calyces

cylindric-campanulate, not inflated, 15–22 mm, stipitate-glandular to glandular-villous, tube 14–19 × 6–8 mm, lobes subequal to distinctly unequal, ovate, apex linear-caudate.

broadly ovate-cylindric, inflated, sagittally compressed, (10–)11–17(–20) mm, stipitate-glandular or minutely hirtellous or a mixture, hairs sometimes also longer, thin-walled, eglandular or glandular, throat not closing, adaxial lobe slightly longer, triangular-blunt.
Capsules

included, 7–13 mm.

included, 5–7 mm.
Anthers

included, white-villous, thecae spreading.

included, glabrous.
2n

= 16.

= 28, 30.

Erythranthe erubescens

Erythranthe utahensis
Phenology Flowering Jul–Aug. Flowering (Feb–)May–Aug(–Oct).
Habitat Springs and seeps, meadows, cliffs, steep rocky slopes, ridges. Drainage ditches, springs, seeps, wet meadows, margins of ponds and small streams, marshy areas.
Elevation (1400–)1800–3000(–3500) m. ((4600–)5900–9800(–11500) ft.) 1400–2500 m. (4600–8200 ft.)
Distribution
from FNA
CA; NV
[WildflowerSearch map]
from FNA
CA; CO; NV; UT
Discussion

Erythranthe erubescens was long identified as E. lewisii but is distinct in its light pink corollas (versus mostly magenta-rose to purplish in E. lewisii), more broadly cylindric calyx tube [14–19 × 6–8 mm versus 12–15(–17) × 9–12 mm], and its geographic range in the Sierra Nevada of California (versus widespread from southern Alaska south to northwestern California, northern Utah, eastern Nevada, and northern Colorado in E. lewisii). The two are genetically isolated and phylogenetically distinct (see summary of evidence in G. L. Nesom 2014b).

In California, Erythranthe erubescens ranges from Modoc, Plumas, and Tehama counties south to Fresno County; in Nevada, it is known only from Washoe County and Carson City.

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

Erythranthe utahensis is characterized by its erect stems, prolifically produced filiform rhizomes, basal leaves short-petiolate to subsessile and cauline sessile, blades suborbicular to broadly ovate or depressed ovate with thin-walled villous-glandular hairs on both surfaces, margins subentire, proximal pedicels elongating to 75 mm, and calyces open at maturity.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 393. FNA vol. 17, p. 410.
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. 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. scouleri, E. shevockii, E. sierrae, E. suksdorfii, E. taylorii, E. thermalis, E. tilingii, E. trinitiensis, E. unimaculata, E. verbenacea, E. washingtonensis, E. willisii
Synonyms Mimulus glabratus subsp. utahensis
Name authority G. L. Nesom: Phytoneuron 2014-31: 12, figs. 11–13. (2014) (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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