Flora of North America species comparison

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Erythranthe dentata

Erythranthe charlestonensis

coast monkeyflower, coastal monkey-flower, tooth-leaf monkey-flower

Charleston Mountains monkeyflower
Habit Perennials, rhizomatous. Annuals, fibrous-rooted, usually dark purplish.
Stems

erect to erect-ascending, simple or few-branched, 15–40 cm, coarsely pilose to hirsute-pilose, glabrescent, internodes evident.

erect, simple, weakly 4-angled, 4–16(–24) cm, slender, glabrous or sparsely villous-glandular near nodes.
Leaves

cauline;

petiole (0–)2–12 mm, not winged, distally sometimes sessile, subclasping;

blade pinnately veined, lanceolate to ovate-lanceolate or elliptic-ovate, 25–75 mm, thick, base rounded to cuneate, margins coarsely dentate to serrate, apex acute to obtuse, surfaces coarsely pilose to hirsute-pilose, glabrescent.

basal and cauline, basal usually persistent, largest at mid stem or above, cauline relatively few on long internodes;

petiole: proximals to distals 1–4 mm;

blade palmately 3-veined, ovate to ovate-lanceolate, 5–16(–20) × 3–11 mm, base truncate to subcordate, margins shallowly, evenly crenulate to serrate-dentate or denticulate, apex acute to obtuse, surfaces: proximals glabrous or sparsely villous, distals and bracteals sparsely hirtellous or glabrous abaxially or along distal margin, sparsely villous adaxially, hairs vitreous, flattened, eglandular.
Flowers

herkogamous, 1–5, from distal nodes.

plesiogamous, (1–)4–7, usually from all nodes, usually beginning about mid stem, cleistogamous.
Styles

glabrous.

glabrous.
Corollas

yellow, palate and throat brown to reddish brown-spotted, bilaterally symmetric, ± bilabiate;

tube-throat funnelform, 15–26 mm, exserted beyond calyx margin;

throat open, palate villous, abaxial ridges low.

yellow, sparsely red-dotted, bilaterally or nearly radially symmetric, bilabiate or nearly regular;

tube-throat narrowly cylindric, 4–6 mm, exserted 0.5–1 mm beyond calyx margin;

limb barely expanded.
Fruiting pedicels

12–25(–50) mm.

deflexed 45–90º at calyx, 6–19 mm, longer than subtending leaves, glabrous or sparsely villous-glandular.
Fruiting calyces

narrowly campanulate, not or weakly inflated, 9–14 mm, villous-hirsute on ribs.

sometimes purple-dotted, broadly elliptic-ovoid, inflated, sagittally compressed, 10–13 mm, minutely hirtellous, sometimes also sparsely glandular, throat closing, adaxial lobe not distinctly longer than abaxial, not falcate.
Capsules

included, 8–9 mm.

included, stipitate, 6–8 mm.
Anthers

included, short villous-hirsute.

included, glabrous.

Erythranthe dentata

Erythranthe charlestonensis
Phenology Flowering May–Aug. Flowering Apr–Jul(–Aug).
Habitat Stream banks. Grassy slopes, damp soils, moist rocks.
Elevation 20–400 m. (100–1300 ft.) (900–)1700–2400(–2800) m. ((3000–)5600–7900(–9200) ft.)
Distribution
from FNA
CA; OR; WA; BC
[WildflowerSearch map]
from FNA
AZ; NV
Discussion

Erythranthe dentata is distinctive and rarely misidentified.

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

Erythranthe charlestonensis is characterized by its annual duration, autogamous reproduction, small stature, commonly purplish color, regularly ovate, short-petiolate leaves with shallowly crenate margins and (distal leaves) sparsely villous or glabrous adaxial surfaces, hirtellous calyces without a prominently longer adaxial lobe, and lack of glandular hairs. It is endemic to the Charleston (Spring) Mountains of Clark County, Nevada, and one locality (Union Pass) in Mohave County, Arizona.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 405. FNA vol. 17, p. 423.
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. 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
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. 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 dentatus
Name authority (Nuttall ex Bentham) G. L. Nesom: Phytoneuron 2012-39: 41. (2012) G. L. Nesom: Phytoneuron 2012-40: 80. (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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