Flora of North America species comparison

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Erythranthe nudata

Erythranthe discolor

bare monkeyflower

party-color monkeyflower, two-color monkeyflower
Habit Annuals, taprooted or fibrous-rooted. Annuals, taprooted.
Stems

erect or ascending, simple or few-branched from basal nodes, branches mostly reddish purple, (5–)9–30 cm, glabrous or minutely stipitate-glandular, hairs 0.05–0.1 mm, at least just above nodes.

erect, simple or branched from basal nodes, 5–12 cm, sparsely glandular-pubescent, internodes elongate, distinct.
Leaves

cauline on wide internodes;

petiole 5–30 mm, distals 0 mm;

blade 1-veined or palmately 3–5-veined, proximals lanceolate or oblong-lanceolate to ovate, narrowly spatulate, or oblanceolate, distals usually linear, not perfoliate, 5–15(–30) × 1–5 mm, base attenuate, margins denticulate to proximally dentate-lobed, apex acute, surfaces glabrous or minutely stipitate-glandular, hairs 0.05–0.1 mm, at least just above nodes.

cauline, basal not persistent;

petiole 0–2 mm;

blade 1-veined or palmately 3-veined (in broader ones), linear to lanceolate or ovate, 5–15 × 1–4 mm, base attenuate, margins entire, apex acute, surfaces sparsely glandular-pubescent.
Flowers

herkogamous, (2–)4–8, usually in proximal or medial to distal axils, chasmogamous.

herkogamous, 1–8, from distal or medial to distal nodes.
Styles

glabrous.

glabrous.
Corollas

yellow, without a large red splotch, throat floor and tube red-spotted, bilaterally symmetric, bilabiate;

tube-throat cylindric-funnelform, 8–12 mm, exserted 2–4 mm beyond calyx margin;

limb expanded 8–12 mm.

yellow and tube-throat adaxial surface red-tinged, abaxial limb red-spotted or deep pink to purple and abaxial limb with 2 yellow ridges, bilaterally symmetric, strongly bilabiate;

tube-throat funnelform, 9–13 mm, exserted beyond calyx margin;

limb expanded 7–15 mm, lobes notched, adaxial limb glabrous or sparsely bearded.
Fruiting pedicels

erect in flower, spreading to divaricate, rarely recurved, in fruit, 10–35 mm, glabrous or minutely stipitate-glandular, hairs 0.05–0.1 mm, at least just above nodes.

erect to ascending, 6–11(–32) mm.
Fruiting calyces

ovate-campanulate, inflated, sagittally compressed, 6–13 mm, glabrous or minutely stipitate-glandular, hairs 0.05–0.1 mm, at least just above nodes, throat closing, abaxial lobe upcurving over lateral ones, nearly closing orifice.

sometimes red-dotted on ribs, campanulate, 4–8 mm, margins distinctly toothed or lobed, sparsely glandular-pubescent, ribs weak, lobes pronounced, erect, margins glabrous.
Capsules

included, 6–7 mm.

included, 5–8 mm.
Anthers

included, glabrous.

included, glabrous.

Erythranthe nudata

Erythranthe discolor
Phenology Flowering Apr–Jun. Flowering May–Jun.
Habitat Open gravelly seeps on serpentine outcrops, serpentine crevices, springs, streamsides, gravelly creek beds, roadside drainages and swales. Moist open areas on gentle slopes in desert chaparral and pine transition areas.
Elevation 200–700 m. (700–2300 ft.) 1400–2700 m. (4600–8900 ft.)
Distribution
from FNA
CA
[WildflowerSearch map]
from FNA
CA
[WildflowerSearch map]
Discussion

Erythranthe nudata is distinct in its annual duration, few, inconspicuous, and narrow leaves, long and spreading-divaricate pedicels, and large corollas. The plants apparently are restricted to serpentine substrate and known only from Colusa, Glenn, Lake, Mendocino, Napa, and Sonoma counties.

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

Erythranthe discolor has two distinctive floral morphs; one is yellow with red spots on the palate, the other is pink with two yellow ridges on the palate. Populations can be monomorphic (usually yellow) or mixed, with the yellow morph most often in higher frequency.

Erythranthe discolor was placed previously in synonymy with E. montioides, and the pink form of E. discolor has commonly been confused with E. palmeri. Erythranthe discolor is known to hybridize with E. barbata and is restricted to Kern and Tulare counties in the southern Sierra Nevada.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 417. FNA vol. 17, p. 386.
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. latidens, E. lewisii, E. linearifolia, E. marmorata, E. michiganensis, E. microphylla, E. minor, E. montioides, E. moschata, E. nasuta, E. norrisii, 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. 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 nudatus Mimulus discolor
Name authority (Curran ex Greene) G. L. Nesom: Phytoneuron 2012-39: 44. (2012) (A. L. Grant) 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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