Flora of North America species comparison

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Erythranthe breviflora

Erythranthe bicolor

short-flower monkey-flower

yellow and white monkeyflower
Habit Annuals, shallowly fibrous-rooted. Annuals, taprooted.
Stems

ascending, geniculate at nodes, branched at proximal and medial nodes, 4–15 cm, minutely stipitate-glandular, hairs 0.1–0.3 mm, gland-tipped, sometimes minutely hirtellous, hairs sharp-pointed, eglandular.

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

usually cauline, basal usually deciduous by flowering;

petiole 1–3 mm;

blade palmately 3-veined, narrowly ovate or narrowly lanceolate to elliptic or elliptic-lanceolate, largest 5–15 × 2–6 mm, relatively even-sized, or slightly reduced distally, base attenuate, margins entire, mucronulate, or denticulate, apex acute to obtuse, surfaces minutely stipitate-glandular, hairs 0.1–0.3 mm, gland-tipped, sometimes minutely hirtellous, hairs sharp-pointed, eglandular.

cauline, basal not persistent;

petiole 0 mm or short-attenuate;

blade 1-veined or palmately 3-veined (in broader ones), narrowly elliptic to linear-lanceolate or linear-oblanceolate, 10–30 × 2–6 mm at mid stem, base attenuate, margins entire or remotely shallowly dentate to mucronulate, teeth 1–4 per side, apex acute, surfaces densely glandular-puberulent, hairs 0.05–0.1 mm, gland-tipped.
Flowers

plesiogamous, 10–20, from medial to distal nodes.

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

glabrous.

minutely glandular.
Corollas

yellow, red-spotted or striped, bilaterally symmetric, weakly bilabiate;

tube-throat cylindric to narrowly funnelform, 3.5–5 mm, not exserted beyond calyx margin;

limb barely widened, lobes broadly obovate, apex rounded.

yellow, adaxial lip white, sometimes yellow, throat and abaxial limb red-spotted, bilaterally symmetric, weakly bilabiate;

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

limb broadly expanded, lobes 2-fid, palate villous.
Fruiting pedicels

straight, 5–11 mm, minutely stipitate-glandular, hairs 0.1–0.3 mm, gland-tipped, sometimes minutely hirtellous, hairs sharp-pointed, eglandular.

(5–)7–20(–30) mm, densely glandular-puberulent, hairs 0.05–0.1 mm, gland-tipped.
Fruiting calyces

winged, plicate-angled, campanulate becoming ovoid-ellipsoid to campanulate, distinctly inflated, 5–6 mm, margins distinctly toothed or lobed, sparsely, minutely hirtellous, eglandular, sometimes sparsely sessile-glandular, lobes pronounced, erect.

red-dotted, strongly angled, cylindric-campanulate, (5–)7–12 mm, margins distinctly toothed or lobed, densely glandular-puberulent, hairs 0.05–0.1 mm, gland-tipped, ribs corky, lobes pronounced, spreading.
Capsules

included, 4–6 mm.

included, 4–6 mm.
Anthers

included, glabrous.

included, margins ciliate, glabrous.

Erythranthe breviflora

Erythranthe bicolor
Phenology Flowering May–Jul. Flowering Apr–Jun.
Habitat Stream and lake sides, gravel bars, springs, moist slopes, damp swales between dunes, along trails. Moist banks, serpentine and granite outcrops, seepage areas, volcanic mudflows, open red clay exposures.
Elevation 700–2300 m. (2300–7500 ft.) (100–)400–1700(–2500) m. ((300–)1300–5600(–8200) ft.)
Distribution
from FNA
CA; ID; MT; NV; OR; WA; BC
[WildflowerSearch map]
from FNA
CA
[WildflowerSearch map]
Discussion

Erythranthe bicolor ranges from Shasta and Trinity counties south to Tulare County; the identity of apparently disjunct populations in San Bernardino County needs to be reexamined.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 399. FNA vol. 17, p. 390.
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. 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. 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. 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. trinitiensis, E. unimaculata, E. utahensis, E. verbenacea, E. washingtonensis, E. willisii
Synonyms Mimulus breviflorus Mimulus bicolor
Name authority (Piper) G. L. Nesom: Phytoneuron 2012-39: 38. (2012) (Hartweg ex Bentham) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 36. (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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