Erythranthe alsinoides |
Erythranthe tilingii |
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chickweed monkey-flower, wing-stem monkey-flower |
larger mountain monkeyflower, mountain monkey-flower, Tiling's monkey-flower |
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Habit | Annuals, fibrous-rooted. | Perennials, rhizomatous, solitary to weakly colonial, rhizomes forming a mass, yellowish, branching, filiform. |
Stems | erect, usually simple, (0.5–)2–6(–15) cm, glandular-puberulent, hairs 0.1–0.2 mm, gland-tipped, nodes 2(or 3), usually red-tinged. |
erect-ascending, usually freely branched, 2–35 cm, glabrous or sparsely stipitate-glandular to short glandular-villous. |
Leaves | basal and cauline; petiole 1–20(–30) mm, distinctly 3-veined (winged); blade palmately 3-veined, lanceolate-ovate to ovate, elliptic, or suborbicular, 3–18(–32) × 3–12(–25) mm, base cuneate to truncate, margins dentate to denticulate or subentire, apex acute to obtuse or rounded, surfaces glandular-puberulent, hairs 0.1–0.2 mm, gland-tipped. |
cauline; petiole 0–25 mm, distals 0 mm; blade palmately 3–5-veined, ovate to lanceolate-triangular or narrowly lanceolate (broadly ovate in large-leaved forms), 5–35(–55) mm, base cuneate to attenuate, margins irregularly denticulate, apex acute to obtuse or rounded, surfaces glabrous, sparsely stipitate-glandular to short glandular-villous, glabrate, or sparsely to moderately villous, hairs thick-vitreous, eglandular. |
Flowers | herkogamous, 1–4(–8), from distal or medial to distal nodes. |
herkogamous, 1–3(–5), from distal nodes. |
Styles | glabrous. |
hirtellous. |
Corollas | yellow, abaxial limb with a large maroon splotch, also red-spotted, bilaterally symmetric, ± bilabiate; tube-throat funnelform-cylindric, 6–9 mm, exserted beyond calyx margin; throat open, palate villous, abaxial ridges low. |
yellow, red-dotted, bilaterally symmetric, bilabiate; tube-throat broadly funnelform, 15–28 mm, exserted 5–10 mm beyond calyx margin; limb expanded 14–30 mm. |
Fruiting pedicels | 15–32 mm, glandular-puberulent, hairs 0.1–0.2 mm, gland-tipped. |
15–35(–40) mm, sparsely stipitate-glandular to short glandular-villous. |
Fruiting calyces | purplish, slightly ridge-angled, campanulate-cylindric, weakly or not inflated, 5–8 mm, margins subtruncate, sparsely minutely stipitate-glandular, lobes 4, (0–)0.5–1 mm, sometimes barely evident, 1 lobe usually slightly longer, margins appearing subtruncate, shallowly convex to rounded-mucronulate. |
usually purple-tinged and purple-dotted, broadly campanulate, inflated, sagittally compressed, 11–15 mm, glabrous or sparsely stipitate-glandular to short glandular-villous, villous at sinuses, throat closing, lobes broadly ovate, abaxial usually longer than lateral, adaxial at least 2 times as long as others. |
Capsules | included, (3–)5–7 mm. |
included, 5–7 mm. |
Anthers | included, glabrous. |
included, glabrous. |
2n | = 28, 56. |
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Erythranthe alsinoides |
Erythranthe tilingii |
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Phenology | Flowering Mar–Jun. | Flowering Jul–Sep. |
Habitat | Open, rocky slopes, cliff faces, bluffs, mossy rock crevices, ledges, moist rocks, roadsides, along wet paths and trails. | Seeps, springs, stream banks, shallow rivulets, cliff bases, ledges and crevices, steep gravelly slopes, wet meadows. |
Elevation | 10–1900 m. (0–6200 ft.) | 1400–3400 m. (4600–11200 ft.) |
Distribution |
CA; ID; OR; WA; BC
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AZ; CA; ID; MT; NV; OR; UT; AB
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Discussion | Erythranthe alsinoides is distinct in its short, erect stems with few nodes, small, mostly ovate to elliptic-ovate, petiolate leaves, minutely stipitate-glandular vestiture, small corollas with a prominent maroon splotch on the abaxial limb, small, non-inflated mature calyces and, most especially, by its nearly truncate calyx margin. Erythranthe pulsiferae is superficially similar to E. alsinoides but has larger calyces borne on divergent-arcuate pedicels, smaller leaf blades with attenuate to cuneate bases, and the corolla limbs are smaller and lack a prominent maroon splotch. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Plants of Erythranthe tilingii are characterized by their relatively low stature and stems arising from a system of thin rhizomes and producing mostly one to three large flowers each; they usually occur at relatively high elevations. Erythranthe tilingii sometimes has been considered to include one or several infraspecific entities; from within this taxonomic amalgam, four distinct species are recognized here: E. caespitosa, E. corallina, E. minor, and E. tilingii. Erythranthe corallina and E. minor probably are more closely related to E. guttata. The populations identified here as E. tilingii from northeastern Oregon northeast to Alberta and southeast to Utah may prove to be a separate (undescribed) species. Erythranthe tilingii in the strict sense is relatively widespread over the western United States and is sympatric with E. caespitosa and E. corallina. Leaves in E. tilingii are variable in size, and particularly in Idaho, they may approach the small size of those of E. caespitosa, but the leaf margins of E. tilingii are distinctly toothed, and the stems are taller and more erect. Across the range of the species, plants sometimes produce very large leaves, but these often occur on plants with characteristically smaller leaves. This wide variability in size apparently does not occur in E. caespitosa. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 395. | FNA vol. 17, p. 408. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus alsinoides | Mimulus tilingii, M. caespitosus var. implexus, M. implexus, M. implicatus, M. langsdorffii var. tilingii, M. lucens, M. veronicifolius |
Name authority | (Douglas ex Bentham) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 37. (2012) | (Regel) G. L. Nesom: Phytoneuron 2012-39: 44. (2012) |
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