FNA: Erythranthe exigua vs. Erythranthe filicifolia

	Erythranthe exigua	Erythranthe filicifolia
	eye strain monkeyflower, San Bernardino Mountains monkeyflower	fern-leaf monkeyflower
Habit	Annuals, taprooted.	Annuals, fibrous-rooted.
Stems	erect, simple, sometimes branched near base, 2–10 cm, minutely stipitate-glandular.	erect or slightly ascending from base, sometimes purplish, simple or few-branched from proximal nodes, 3–38 cm, glabrous.
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.	basal and cauline; petiole (proximal and proximal to mid cauline), distal bracteate or absent, ovate, margins entire; blade: divisions 1-veined, oblong-lanceolate to ovate in outline, 3–68 mm, slightly thickened, base (at proximalmost division) truncate, margins (of divisions) entire, bipinnately dissected, ca. 5–12(–15) primary divisions on each side, ultimate division nearly linear, apex obtuse to acute, surfaces glabrous.
Flowers	plesiogamous, (1 or)2–6, from distal or medial to distal nodes.	plesiogamous, 4–10(–12), on foreshortened distal nodes, usually clustered, chasmogamous, sometimes cleistogamous.
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, proximal lip sometimes red-splotched, palate ridges yellow, bilaterally symmetric, bilabiate; tube-throat cylindric-funnelform, 4–8 mm, exserted 0–2 mm beyond calyx margin or not; palate ridges densely villous.
Fruiting pedicels	divergent-spreading, 15–20 mm, minutely stipitate-glandular.	6–14 mm, glabrous.
Fruiting calyces	campanulate, 2–2.5 mm, minutely stipitate-glandular.	urceolate to urceolate-campanulate, inflated, sagittally compressed, 8–11 mm, glabrous, throat closing.
Capsules	distinctly exserted, 3–4 mm.	included, 3–8 mm.
Stigmas	persistent in fruit.
Anthers	included, glabrous.	included, glabrous.

	Erythranthe exigua	Erythranthe filicifolia
Phenology	Flowering Jun–Jul.	Flowering Apr–Jun(–Sep).
Habitat	Gentle slopes, along small streams, vernal creeks, pebble plains, openings in Jeffrey pine-juniper forests, runoff areas, vernal depressions, roadsides.	Slow-draining, ephemeral seeps on exfoliating granite slabs, over basalt.
Elevation	1800–2400(–2600) m. (5900–7900(–8500) ft.)	300–1600 m. (1000–5200 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 filicifolia is known only from localities in Butte and Plumas counties. (Discussion copyrighted by Flora of North America; reprinted with permission.)
Source	FNA vol. 17, p. 406.	FNA vol. 17, p. 418.
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. 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 exiguus	Mimulus filicifolius
Name authority	(A. Gray) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 42. (2012)	(Sexton: K. G. Ferris & Schoenig) G. L. Nesom, Phytoneuron 2013-80: 1. (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 filicifolia

eye strain monkeyflower, San Bernardino Mountains monkeyflower

fern-leaf monkeyflower

Habit

Annuals, taprooted.

Annuals, fibrous-rooted.

Stems

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

erect or slightly ascending from base, sometimes purplish, simple or few-branched from proximal nodes, 3–38 cm, glabrous.

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.

basal and cauline;

petiole (proximal and proximal to mid cauline), distal bracteate or absent, ovate, margins entire;

blade: divisions 1-veined, oblong-lanceolate to ovate in outline, 3–68 mm, slightly thickened, base (at proximalmost division) truncate, margins (of divisions) entire, bipinnately dissected, ca. 5–12(–15) primary divisions on each side, ultimate division nearly linear, apex obtuse to acute, surfaces glabrous.

Flowers

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

plesiogamous, 4–10(–12), on foreshortened distal nodes, usually clustered, chasmogamous, sometimes cleistogamous.

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, proximal lip sometimes red-splotched, palate ridges yellow, bilaterally symmetric, bilabiate;

tube-throat cylindric-funnelform, 4–8 mm, exserted 0–2 mm beyond calyx margin or not; palate ridges densely villous.

Fruiting pedicels

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

6–14 mm, glabrous.

Fruiting calyces

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

urceolate to urceolate-campanulate, inflated, sagittally compressed, 8–11 mm, glabrous, throat closing.

Capsules

distinctly exserted, 3–4 mm.

included, 3–8 mm.

Stigmas

persistent in fruit.

Anthers

included, glabrous.

Erythranthe exigua

Erythranthe filicifolia

Phenology

Flowering Jun–Jul.

Flowering Apr–Jun(–Sep).

Habitat

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

Slow-draining, ephemeral seeps on exfoliating granite slabs, over basalt.

Elevation

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

300–1600 m. (1000–5200 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 filicifolia is known only from localities in Butte and Plumas counties.

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

Source

FNA vol. 17, p. 406.

FNA vol. 17, p. 418.

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. 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 exiguus

Mimulus filicifolius

Name authority

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

(Sexton: K. G. Ferris & Schoenig) G. L. Nesom, Phytoneuron 2013-80: 1. (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 filicifolia

Erythranthe exigua

Erythranthe filicifolia