Erythranthe primuloides |
Erythranthe alsinoides |
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primrose monkey-flower |
chickweed monkey-flower, wing-stem monkey-flower |
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Habit | Perennials, rhizomatous or stoloniferous, mat-forming, rhizomes or stolons flagelliform. | Annuals, fibrous-rooted. |
Stems | erect to ascending, usually simple, 2–10(–20) cm, villous, internodes shortened. |
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. |
Leaves | all basal or near basal, often rosulate; petiole 0 mm; blade palmately 3-veined, oblanceolate to elliptic-obovate, 7–40 × 4–12 mm, base cuneate to attenuate, margins entire, distally denticulate to dentate, or sharply serrate-dentate, apex acute to obtuse, abaxial surface glabrous, adaxial glabrous or glabrate to sparsely to densely long-villous, eglandular. |
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. |
Flowers | herkogamous, 1. |
herkogamous, 1–4(–8), from distal or medial to distal nodes. |
Styles | glabrous. |
glabrous. |
Corollas | yellow to orange-yellow, usually brown-spotted abaxially, base of each abaxial lobe usually with a larger reddish brown spot, bilaterally or nearly radially symmetric, weakly bilabiate or nearly regular, densely hirsute on abaxial side of opening; tube-throat narrowly campanulate, 15–20 mm, exserted beyond calyx margin; lobes broadly obovate-oblong, apex rounded- or truncate-notched, throat open, palate densely villous, abaxial ridges prominent. |
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. |
Fruiting pedicels | 30–110(–130) mm, glabrous or sparsely stipitate-glandular near base. |
15–32 mm, glandular-puberulent, hairs 0.1–0.2 mm, gland-tipped. |
Fruiting calyces | tubular-campanulate, weakly or not inflated, 6–8 mm, glabrous. |
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. |
Capsules | included, 6–7 mm. |
included, (3–)5–7 mm. |
Anthers | slightly exserted, margins ciliate, glabrous. |
included, glabrous. |
2n | = 34. |
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Erythranthe primuloides |
Erythranthe alsinoides |
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Phenology | Flowering Jun–Aug. | Flowering Mar–Jun. |
Habitat | Wet meadows, seeps, streamsides. | Open, rocky slopes, cliff faces, bluffs, mossy rock crevices, ledges, moist rocks, roadsides, along wet paths and trails. |
Elevation | 600–3400 m. (2000–11200 ft.) | 10–1900 m. (0–6200 ft.) |
Distribution |
AZ; CA; ID; MT; NM; NV; OR; UT; WA
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CA; ID; OR; WA; BC
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Discussion | Flowers in Erythranthe primuloides and E. linearifolia characteristically appear to be scapose, but the scapes are pedicels arising from axils of greatly foreshortened stems. Occasionally in both species the internodes may lengthen somewhat, and the leaves are not so densely clustered at the base of the stems. In northern Klamath, western Deschutes, and eastern Douglas counties, Oregon, an area within the range of typical populations, Erythranthe primuloides has distinctively large corollas (limbs 10–15 mm wide). Apparent clones of large-flowered and smaller-flowered plants sometimes grow in close proximity or even intermixed, appearing as two different entities. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
Source | FNA vol. 17, p. 389. | FNA vol. 17, p. 395. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus primuloides, M. nevadensis, M. pilosellus, M. primuloides var. minimus, M. primuloides var. pilosellus | Mimulus alsinoides |
Name authority | (Bentham) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 35. (2012) | (Douglas ex Bentham) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 37. (2012) |
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