Flora of North America species comparison

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Erythranthe geyeri

Erythranthe trinitiensis

Geyer's monkeyflower, mimule de James

pink-margined monkeyflower, Trinity Mountains or pink-margined monkeyflower
Habit Perennials, rhizomatous, rooting at nodes. Annuals, shallowly fibrous-rooted.
Stems

decumbent-ascending to ascending or erect-ascending, branched, (3–)10–40 cm, glabrous.

erect, straight at nodes, simple or branched at base, 5–15 cm, puberulent, hairs gland-tipped, glands often dark.
Leaves

cauline, basal not persistent;

petiole 3–10(–20) mm or 0 mm distally;

blade palmately 3–5-veined, suborbicular to depressed-ovate or broadly elliptic-ovate to reniform, 6–25 mm, relatively even-sized or largest often at mid stem, bracteal reduced, base cuneate to truncate or subcordate, margins shallowly dentate to crenate-dentate, teeth 3–7(–10) per side, apex rounded, adaxial surface of distals sparsely short villous-glandular or glabrous.

mostly cauline, largest at mid stem;

petiole 4–8 mm, 1-veined, not winged;

blade palmately 3-veined, ovate to elliptic-ovate, 6–17 × 4–9 mm, base attenuate, margins entire or dentate-serrate, teeth 1–2 per side, shallow, apex acute, surfaces puberulent, hairs gland-tipped, glands often dark, adaxial sometimes sparsely villous-glandular.
Flowers

plesiogamous, 2–8(–12), from distal nodes, sometimes from most nodes, very loosely racemose.

herkogamous, 1–12, from proximal to distal nodes.
Styles

glabrous.

glabrous.
Corollas

yellow, sparsely red-dotted or not, bilaterally symmetric, weakly bilabiate;

tube-throat cylindric-funnelform, 6–8 mm, exserted 1–3 mm beyond calyx margin;

limb expanded 5–8 mm.

yellow and light pink to white, tube-throat yellow (inner and outer surfaces), lobes (limb) pink or white with pink distal borders, palate ridges yellow, throat floor and ridges weakly red-spotted, bilaterally symmetric, weakly bilabiate;

tube-throat funnelform, 7–10 mm, exserted beyond calyx margin.
Fruiting pedicels

18–30 mm, sparsely short villous-glandular or glabrous.

divergent-arcuate, 9–17 mm.
Fruiting calyces

obtriangular to broadly obtriangular or deeply cupulate, inflated, sagittally compressed, (7–)8–12 mm, sparsely short villous-glandular or glabrous, throat not closing, lateral lobes shallowly convex-mucronulate, adaxial ovate with apex rounded.

oblong-ovoid, distinctly inflated, 8–10 mm, margins distinctly toothed or lobed, puberulent, hairs gland-tipped, glands often dark, lobes pronounced, erect.
Capsules

included, (4.5–)5–8 mm.

included, 6–8 mm.
Anthers

included, glabrous.

included, glabrous.
2n

= 30.

Erythranthe geyeri

Erythranthe trinitiensis
Phenology Flowering May–Aug(–Oct). Flowering Jun–Jul(–Aug).
Habitat Edges of flowing streams, marsh edges, drainage ditches, seepage areas, springs, muddy or moist banks. Seeps over serpentine, wet meadows, roadsides.
Elevation 200–2500 m. (700–8200 ft.) 1300–2000 m. (4300–6600 ft.)
Distribution
from FNA
AZ; CO; IA; IL; KS; MI; MN; MO; NE; NM; OK; PA; SD; TX; WI; WY; AB; MB; ON; QC; SK; Mexico (Chihuahua, Coahuila, Distrito Federal, Durango, Hidalgo, Nuevo León, México, Querétaro, San Luis Potosí, Sonora, Veracruz, Zacatecas)
[WildflowerSearch map]
from FNA
CA
Discussion

Erythranthe geyeri has commonly been regarded as conspecific with E. glabrata (Kunth) G. L. Nesom (as Mimulus glabratus var. jamesii), but typical E. glabrata has a different chromosome number and distinct morphology and its range does not reach the United States. In Mexico, the two species are broadly sympatric without intermediates. An allozyme study of the M. glabratus complex (R. K. Vickery 1990) indicated that the Great Plains populations of E. geyeri are distinct from those in New Mexico and Mexico, corresponding to a difference in pedicel vestiture.

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

Erythranthe trinitiensis is similar to E. pulsiferae in its narrow leaves, glandular-puberulent vestiture, and weakly bilabiate corollas; it differs in its early-shed basal leaves, cauline leaves with one-veined petioles, and yellow corolla tubes and throats with pink lobes or lobe margins. The species is known only in Humboldt, Siskiyou, and Trinity counties.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 406. FNA vol. 17, p. 399.
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. 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. unimaculata, E. utahensis, E. verbenacea, E. washingtonensis, E. willisii
Synonyms Mimulus geyeri, M. glabratus var. fremontii, M. glabratus var. jamesii, M. glabratus var. oklahomensis, M. jamesii, M. jamesii var. fremontii
Name authority (Torrey) G. L. Nesom: Phytoneuron 2012-39: 43. (2012) G. L. Nesom: Phytoneuron 2013-43: 1, figs. 1–3. (2013)
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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