Erythranthe alsinoides |
Erythranthe minor |
|
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chickweed monkey-flower, wing-stem monkey-flower |
Colorado monkeyflower |
|
Habit | Annuals, fibrous-rooted. | Perennials, rhizomatous, colonial, rhizomes forming a mass, 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 to erect-ascending, branched, 5–20 cm, densely minutely hirtellous and eglandular or with a mixture of hirtellous and gland-tipped hairs. |
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. |
basal and cauline; petiole 0 mm or proximals 1–3 mm; blade palmately 3-veined, broadly ovate to elliptic-ovate or lanceolate, 8–25 × 5–15 mm, base cuneate to truncate, margins shallowly dentate to denticulate, apex acute to obtuse, surfaces glabrous. |
Flowers | herkogamous, 1–4(–8), from distal or medial to distal nodes. |
herkogamous, 1–3, from distal nodes. |
Styles | glabrous. |
sparsely 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, not red-dotted, bilaterally symmetric, bilabiate; tube-throat tubular-funnelform, 9–11 mm, exserted 0–1(–2) mm beyond calyx margin. |
Fruiting pedicels | 15–32 mm, glandular-puberulent, hairs 0.1–0.2 mm, gland-tipped. |
10–20 mm, densely minutely hirtellous and eglandular or with a mixture of hirtellous and gland-tipped hairs. |
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. |
nodding 80–100º, not purple-dotted, cylindric-campanulate, inflated, sagittally compressed, 10–13 mm, densely minutely hirtellous and eglandular or with a mixture of hirtellous and gland-tipped hairs, throat closing. |
Capsules | included, (3–)5–7 mm. |
included, 5–8 mm. |
Anthers | included, glabrous. |
included, glabrous. |
Erythranthe alsinoides |
Erythranthe minor |
|
Phenology | Flowering Mar–Jun. | Flowering Jul–Aug(–Sep). |
Habitat | Open, rocky slopes, cliff faces, bluffs, mossy rock crevices, ledges, moist rocks, roadsides, along wet paths and trails. | Stream and lake edges, intermittent subalpine water courses, roadside ditches, subalpine to alpine. |
Elevation | 10–1900 m. (0–6200 ft.) | 3000–3700 m. (9800–12100 ft.) |
Distribution |
CA; ID; OR; WA; BC
|
CO; NM |
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.) |
The corollas of Erythranthe minor are shorter than those of typical E. tilingii, and the two species are allopatric. Corollas of E. tilingii rarely may be equally as short as those of E. minor but are produced in scattered localities on plants that are depauperate in other ways. The range of E. minor is primarily in Colorado apparently extending southward into the Wheeler Peak area of Taos County, New Mexico. Attribution of its range into the La Sal Mountains of east-central Utah has been based on misidentifications of E. guttata; the distinction between E. guttata and E. minor in Colorado also needs clarification. Mimulus luteus Linnaeus var. alpinus A. Gray (1863, the type from Colorado) is an illegitimate name for Erythranthe minor, preceded by M. luteus var. alpinus Lindley (1827). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 395. | FNA vol. 17, p. 409. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus alsinoides | Mimulus minor, M. alpinus, M. langsdorffii var. alpinus, M. langsdorffii var. minor |
Name authority | (Douglas ex Bentham) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 37. (2012) | (A. Nelson) G. L. Nesom: Phytoneuron 2012-39: 44. (2012) |
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