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short-flower monkey-flower

Shasta limestone monkeyflower, Taylor's or Shasta limestone monkeyflower

Habit Annuals, shallowly fibrous-rooted. Annuals, filiform-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, straight at nodes, simple or few-branched from base, 5–10 cm, sparsely eglandular-villous proximally, becoming sparsely short stipitate-glandular distally.

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.

usually cauline, basal not persistent, largest at mid stem or basal and mid stem to nearly even-sized;

petiole 3–5(–8) mm;

blade often purple adaxially, palmately 3–5-veined, broadly ovate to elliptic-ovate or ovate-lanceolate, 4–20 × 4–12 mm, base rounded to truncate, margins serrate-dentate, teeth 2–4 per side, shallow, apex rounded to obtuse or acute, surfaces: distals moderately short-stipitate-glandular.

Flowers

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

herkogamous, sometimes plesiogamous, 2–6(–8), from proximal to distal nodes.

Styles

glabrous.

glabrous.

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, throat ceiling sometimes red-spotted or -lined, abaxial limb yellow or with 1 or 2 red splotches, bilaterally symmetric, bilabiate;

tube-throat funnelform, 5–7 mm, exserted beyond calyx margin.

Fruiting pedicels

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

divergent to arcuate-divergent, 6–13 mm.

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.

wing-angled, tubular-campanulate, 4–5 mm, margins distinctly toothed or lobed, densely invested with tiny, waxy-white, eglandular, papillose hairs between angles, lobes pronounced, erect.

Capsules

included, 4–6 mm.

included, 3–4 mm.

Anthers

included, glabrous.

included, glabrous.

Erythranthe breviflora

Erythranthe taylorii

Phenology Flowering May–Jul. Flowering Feb–May.
Habitat Stream and lake sides, gravel bars, springs, moist slopes, damp swales between dunes, along trails. Crevices in limestone cliff faces and outcrops.
Elevation 700–2300 m. (2300–7500 ft.) 900–1100 m. (3000–3600 ft.)
Distribution
from FNA
CA; ID; MT; NV; OR; WA; BC
[WildflowerSearch map]
from FNA
CA
[WildflowerSearch map]
Discussion

Erythranthe taylorii is known only from the Shasta Lake region of northwestern Shasta County. Its broad, distinctly bilabiate corollas and ovate leaf blades with palmate venation are similar to those of species of the northern group of sect. Mimulosma, the "Columbia River clade" (J. B. Whittall et al. 2006) of Idaho, Montana, Oregon, Washington, and Wyoming, particularly to the Idaho endemic E. ampliata. Erythranthe taylorii is distinct from E. ampliata in its larger, papillose calyces, shorter fruiting pedicels, corollas with shorter tube-throats, and shorter capsules. Considerable corolla color variation exists in E. taylorii in the occurrence and density of red dots and lines on the throat ceiling and larger red splotches on the abaxial limb.

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

Source FNA vol. 17, p. 399. FNA vol. 17, p. 398.
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. 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. thermalis, E. tilingii, E. trinitiensis, E. unimaculata, E. utahensis, E. verbenacea, E. washingtonensis, E. willisii
Synonyms Mimulus breviflorus
Name authority (Piper) G. L. Nesom: Phytoneuron 2012-39: 38. (2012) G. L. Nesom: Phytoneuron 2013-43: 6, figs. 5–7. (2013) — (as taylori)
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