Flora of North America species comparison

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Erythranthe latidens

Erythranthe palmeri

broad-tooth monkeyflower

Palmer's monkeyflower
Habit Annuals, fibrous-rooted or filiform-taprooted. Annuals, taprooted.
Stems

ascending to ascending-erect, geniculate at nodes, usually many-branched from base, 3–10(–25) cm, short stipitate-glandular or sessile-glandular, hairs 0.1–0.3 mm, gland-tipped.

erect, simple or branched from basal nodes, 4–17 cm, minutely puberulent.
Leaves

basal and cauline, largest at base or near mid stem, sometimes unreduced in size up to distalmost nodes;

petiole 0 mm;

cauline blade palmately 3(–5)-veined, ovate to ovate-lanceolate, 8–26(–35) mm, base abruptly cuneate to rounded, sometimes subauriculate, margins entire or barely mucronulate to shallowly dentate-mucronulate, teeth or mucronulae 1–3 per side, apex acute to rounded, surfaces short stipitate-glandular or sessile-glandular, hairs 0.1–0.3 mm, gland-tipped.

cauline, basal not persistent;

petiole 0 mm;

blade pinnately veined, palmately 3-veined (in broader ones), linear to oblanceolate, (3–)4–17 × 1–4 mm, base attenuate, margins entire, apex acute to obtuse, surfaces minutely puberulent.
Flowers

plesiogamous, (1–)3–12, from medial to distal nodes.

herkogamous, 1–36, from distal or medial to distal nodes.
Styles

glabrous.

glabrous.
Corollas

white to pinkish or flesh colored, rarely yellowish, throat and abaxial lobes red-spotted, nearly radially symmetric;

tube-throat cylindric, 5–6(–8) mm, exserted beyond calyx margin;

limb barely widened, lobes broadly obovate, apex rounded.

pink to purple, abaxial limb with 2 yellow ridges, bilaterally symmetric, strongly bilabiate;

tube-throat funnelform, 6–15 mm, exserted beyond calyx margin;

limb expanded 8–15 mm, lobes deeply notched, abaxial limb sparsely bearded.
Fruiting pedicels

straight, 11–28 mm, short stipitate-glandular or sessile-glandular, hairs 0.1–0.3 mm, gland-tipped.

spreading horizontally, 5–33 mm.
Fruiting calyces

purplish, prominently 5-angled, tubular-campanulate or ovoid-ellipsoid, strongly inflated, 8–12 mm, margins distinctly toothed or lobed, short stipitate-glandular or sessile-glandular, hairs 0.1–0.3 mm, gland-tipped, lobes pronounced, erect.

sometimes red-spotted on ribs, becoming straw colored, cylindric, 4–8 mm, margins distinctly toothed or lobed, glabrous, ribs weak, lobes pronounced, erect, margins ciliate.
Capsules

included, 6–7 mm.

included, 4–8 mm.
Anthers

included, glabrous.

included, glabrous.

Erythranthe latidens

Erythranthe palmeri
Phenology Flowering Apr–Jun. Flowering Apr–Jun.
Habitat Drained flats or slopes subject to vernal inundation, depressions in open fields, bare clay soils, vacant lots, roadsides. Moist areas in openings in pine forest and desert chaparral transitions.
Elevation 10–800 m. (0–2600 ft.) 900–2200 m. (3000–7200 ft.)
Distribution
from FNA
CA; OR; Mexico (Baja California)
[WildflowerSearch map]
from FNA
CA
[WildflowerSearch map]
Discussion

The distinction between Erythranthe latidens and E. inflatula sometimes seems arbitrary, perhaps because of gene exchange where they are sympatric in northwestern California. Erythranthe latidens in Oregon is known only from southern Harney County.

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

Erythranthe palmeri has been confused with other closely related species, including E. diffusa, E. discolor (pink form), E. rhodopetra, and E. sierrae. It was previously thought to be a widely distributed species because of this taxonomic confusion but now is regarded as endemic to the Transverse Range in the San Bernardino and San Gabriel mountains.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 400. FNA vol. 17, p. 387.
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. 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. 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 inconspicuus var. latidens, M. latidens Mimulus palmeri
Name authority (A. Gray) G. L. Nesom: Phytoneuron 2012-39: 38. (2012) (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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