Flora of North America species comparison

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Erythranthe filicaulis

Erythranthe calciphila

Hetch Hetchy monkey-flower, slender-stem monkeyflower

Mexican moss monkeyflower
Habit Annuals, taprooted. Annuals, usually fibrous-rooted, rarely rooting at proximal nodes.
Stems

erect, simple or branched at basal nodes, 4–30 cm, densely glandular-puberulent, hairs 0.05–0.1 mm, gland-tipped.

erect, sometimes decumbent-ascending, branched, 4–30 cm, minutely stipitate-glandular, also delicately villosulous-glandular along whole length.
Leaves

cauline, basal usually not persistent;

petiole 0 mm;

blade 1-veined or palmately 3-veined, linear to oblanceolate, 6–15 × (1–)2–3 mm, base attenuate, margins entire to remotely mucronulate, teeth 1–3 per side, apex acute, surfaces densely glandular-puberulent, hairs 0.05–0.1 mm, gland-tipped.

basal and cauline;

petiole 1–3 mm, cauline blade slightly or hardly reduced in size from basal, becoming subsessile to sessile (1–3 pairs of cauline leaves);

blade palmately 3(–5)-veined, orbicular-ovate to oblong-ovate, 7–28 × 5–22 mm, base truncate to shallowly cuneate, margins shallowly dentate to denticulate, teeth 3–6 per side, apex rounded to obtuse, surfaces villous, hairs thin-walled, vitreous, eglandular or minutely gland-tipped, usually also minutely stipitate-glandular.
Flowers

herkogamous, 2–8, from medial to distal nodes.

plesiogamous, 1–6(–10), axillary at all nodes, chasmogamous.
Styles

glabrous.

glabrous.
Corollas

pink to purple, throat dark red-purple, palate ridges yellow, bilaterally or nearly radially symmetric, weakly bilabiate or nearly regular;

tube-throat cylindric-funnelform, 8–12(–17) mm, exserted beyond calyx margin;

limb expanded 10–14 mm, lobes notched, palate villous.

light yellow, red-spotted, weakly bilaterally symmetric, ± bilabiate;

tube-throat narrowly funnelform, 5–7 mm, exserted 1–2 mm beyond calyx margin;

limb expanded 2–4 mm.
Fruiting pedicels

9–30 mm, densely glandular-puberulent, hairs 0.05–0.1 mm, gland-tipped.

15–30(–55) mm, minutely stipitate-glandular, sometimes minutely hirtellous and minutely stipitate-glandular, sometimes short glandular-villous.
Fruiting calyces

reddish brown-spotted, strongly angled, cylindric-campanulate, 7–9 mm, margins distinctly toothed or lobed, densely glandular-puberulent, hairs 0.05–0.1 mm, gland-tipped, ribs corky, lobes pronounced, spreading.

nodding 90º at maturity, usually 3(–5)-veined, ovoid, inflated, sagittally compressed, 6–10 mm, minutely stipitate-glandular, throat closing, lobes usually 3 or 3 and 5 on same plant, if 5 then with 2 interpolated lobes much smaller than abaxial pair.
Capsules

included, 5–7 mm.

included, 2–4 mm.
Anthers

included, hirtellous.

included, glabrous.
2n

= 16.

= 30, 32.

Erythranthe filicaulis

Erythranthe calciphila
Phenology Flowering May–Jul. Flowering Mar–Sep(–Nov).
Habitat Moist open areas on gentle slopes, meadows, roadsides, gravelly soils. Rocky knobs, moist boulders, wet rock faces, roadcuts, seepages, springs, with moss, usually in pine or pine-oak woods.
Elevation 800–1800 m. (2600–5900 ft.) 1800–2500 m. (5900–8200 ft.)
Distribution
from FNA
CA
[WildflowerSearch map]
from FNA
AZ; Mexico (Chihuahua, Durango, Sinaloa, Sonora)
Discussion

Erythranthe filicaulis is known only for certain from Mariposa and Tuolumne counties. Kappler 1691 (UCLA) from Madera County also may be this species.

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

Erythranthe calciphila is recognized by its annual duration (fibrous-rooted), short, erect stems with few, even-sized leaves (the basal often persistent), delicate stipitate-glandular vestiture, three-lobed calyces that are relatively large in fruit, small corollas, and autogamous reproduction. Plants rarely root at proximal nodes. In Arizona, at the northernmost extremity of its range, E. calciphila occurs in the Chiricahua, Huachuca, and Mule mountains of Cochise County.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 391. FNA vol. 17, p. 424.
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. 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. 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. trinitiensis, E. unimaculata, E. utahensis, E. verbenacea, E. washingtonensis, E. willisii
Synonyms Mimulus filicaulis, M. biolettii Mimulus calciphilus, M. minutiflorus
Name authority (S. Watson) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 36. (2012) (Gentry) G. L. Nesom: Phytoneuron 2012-39: 43. (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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