FNA: Erythranthe exigua vs. Erythranthe trinitiensis

	Erythranthe exigua	Erythranthe trinitiensis
	eye strain monkeyflower, San Bernardino Mountains monkeyflower	pink-margined monkeyflower, Trinity Mountains or pink-margined monkeyflower
Habit	Annuals, taprooted.	Annuals, shallowly fibrous-rooted.
Stems	erect, simple, sometimes branched near base, 2–10 cm, minutely stipitate-glandular.	erect, straight at nodes, simple or branched at base, 5–15 cm, puberulent, hairs gland-tipped, glands often dark.
Leaves	cauline; petiole 0 mm; blade 1-veined, obovate-oblong to narrowly elliptic, ovate, or narrowly ovate, 3–6 mm, base rounded to truncate or cuneate, margins entire or shallowly dentate, apex rounded, surfaces minutely stipitate-glandular.	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, (1 or)2–6, from distal or medial to distal nodes.	herkogamous, 1–12, from proximal to distal nodes.
Styles	glabrous.	glabrous.
Corollas	light lavender to purple, abaxial lobe and palate ridges with yellow patches, bilaterally symmetric, ± bilabiate; tube-throat narrowly funnelform-cylindric, 1.5–2.5 mm, exserted 0.5 mm beyond calyx margin; lobes spreading.	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	divergent-spreading, 15–20 mm, minutely stipitate-glandular.	divergent-arcuate, 9–17 mm.
Fruiting calyces	campanulate, 2–2.5 mm, minutely stipitate-glandular.	oblong-ovoid, distinctly inflated, 8–10 mm, margins distinctly toothed or lobed, puberulent, hairs gland-tipped, glands often dark, lobes pronounced, erect.
Capsules	distinctly exserted, 3–4 mm.	included, 6–8 mm.
Stigmas	persistent in fruit.
Anthers	included, glabrous.	included, glabrous.

	Erythranthe exigua	Erythranthe trinitiensis
Phenology	Flowering Jun–Jul.	Flowering Jun–Jul(–Aug).
Habitat	Gentle slopes, along small streams, vernal creeks, pebble plains, openings in Jeffrey pine-juniper forests, runoff areas, vernal depressions, roadsides.	Seeps over serpentine, wet meadows, roadsides.
Elevation	1800–2400(–2600) m. (5900–7900(–8500) ft.)	1300–2000 m. (4300–6600 ft.)
Distribution	CA; Mexico (Baja California) [WildflowerSearch map]	CA
Discussion	Plants of Erythranthe exigua are diminutive annuals with few nodes and greatly reduced leaves, corollas, and calyces, wide spreading pedicels, and lavender flowers with small but bilabiate limbs. The species is known only from the San Bernardino Mountains of San Bernardino County and in adjacent Mexico. (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. 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. unimaculata, E. utahensis, E. verbenacea, E. washingtonensis, E. willisii
Synonyms	Mimulus exiguus
Name authority	(A. Gray) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 42. (2012)	G. L. Nesom: Phytoneuron 2013-43: 1, figs. 1–3. (2013)
Web links	Local floras: CA Local Web sites: CalFlora, CalPhotos WildflowerSearch iNaturalist (observations) LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: CA Local Web sites: CalFlora, CalPhotos WildflowerSearch iNaturalist (observations) LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Erythranthe trinitiensis

eye strain monkeyflower, San Bernardino Mountains monkeyflower

pink-margined monkeyflower, Trinity Mountains or pink-margined monkeyflower

Habit

Annuals, taprooted.

Annuals, shallowly fibrous-rooted.

Stems

erect, simple, sometimes branched near base, 2–10 cm, minutely stipitate-glandular.

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

Leaves

cauline;

petiole 0 mm;

blade 1-veined, obovate-oblong to narrowly elliptic, ovate, or narrowly ovate, 3–6 mm, base rounded to truncate or cuneate, margins entire or shallowly dentate, apex rounded, surfaces minutely stipitate-glandular.

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, (1 or)2–6, from distal or medial to distal nodes.

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

Styles

glabrous.

Corollas

light lavender to purple, abaxial lobe and palate ridges with yellow patches, bilaterally symmetric, ± bilabiate;

tube-throat narrowly funnelform-cylindric, 1.5–2.5 mm, exserted 0.5 mm beyond calyx margin;

lobes spreading.

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

divergent-spreading, 15–20 mm, minutely stipitate-glandular.

divergent-arcuate, 9–17 mm.

Fruiting calyces

campanulate, 2–2.5 mm, minutely stipitate-glandular.

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

Capsules

distinctly exserted, 3–4 mm.

included, 6–8 mm.

Stigmas

persistent in fruit.

Anthers

included, glabrous.

Erythranthe exigua

Erythranthe trinitiensis

Phenology

Flowering Jun–Jul.

Flowering Jun–Jul(–Aug).

Habitat

Gentle slopes, along small streams, vernal creeks, pebble plains, openings in Jeffrey pine-juniper forests, runoff areas, vernal depressions, roadsides.

Seeps over serpentine, wet meadows, roadsides.

Elevation

1800–2400(–2600) m. (5900–7900(–8500) ft.)

1300–2000 m. (4300–6600 ft.)

Distribution

CA; Mexico (Baja California)

[WildflowerSearch map]

Discussion

Plants of Erythranthe exigua are diminutive annuals with few nodes and greatly reduced leaves, corollas, and calyces, wide spreading pedicels, and lavender flowers with small but bilabiate limbs. The species is known only from the San Bernardino Mountains of San Bernardino County and in adjacent Mexico.

(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

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. 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. unimaculata, E. utahensis, E. verbenacea, E. washingtonensis, E. willisii

Synonyms

Mimulus exiguus

Name authority

(A. Gray) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 42. (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).

Choose a data source: Flora of North America

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Erythranthe exigua

Erythranthe trinitiensis

Erythranthe exigua

Erythranthe trinitiensis