Erythranthe breviflora |
Erythranthe floribunda |
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short-flower monkey-flower |
many-flower monkey-flower, purple-stem monkey-flower |
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Habit | Annuals, shallowly fibrous-rooted. | Annuals, fibrous-rooted or 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 to decumbent, sometimes procumbent-trailing, straight or geniculate at nodes, simple or many-branched, 3–22(–40) cm, villous-glandular, hairs greatly variable in length and density, gland-tipped, sometimes 0.2–0.5 mm, sparsely stipitate-glandular. |
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 mostly deciduous by flowering; petiole 1–12 mm; blade pinnately to subpalmately veined, ovate, (3–)8–25(–35) × (1–)5–18(–26) mm, base cuneate to truncate or cordate, margins serrate to sparsely dentate, apex acute, surfaces villous-glandular, hairs greatly variable in length and density, gland-tipped, sometimes 0.2–0.5 mm, sparsely stipitate-glandular. |
Flowers | plesiogamous, 10–20, from medial to distal nodes. |
plesiogamous, 1–20, 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, abaxial limb red-dotted, bilaterally symmetric, weakly bilabiate; tube-throat funnelform-cylindric, (4–)5–10 mm, exserted slightly beyond calyx margin or not; limb expanded 3–4 mm diam., lobes usually oblong, apex notched. |
Fruiting pedicels | straight, 5–11 mm, minutely stipitate-glandular, hairs 0.1–0.3 mm, gland-tipped, sometimes minutely hirtellous, hairs sharp-pointed, eglandular. |
5–20(–26) mm, villous-glandular, hairs greatly variable in length and density, gland-tipped, sometimes 0.2–0.5 mm, sparsely stipitate-glandular. |
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. |
greenish or purplish to red-dotted, cylindric, ± inflated, 4–7 mm, margins distinctly toothed or lobed, villous-glandular, lobes pronounced, erect. |
Capsules | included, 4–6 mm. |
included, 4–7 mm. |
Anthers | included, glabrous. |
included, glabrous. |
2n | = 32. |
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Erythranthe breviflora |
Erythranthe floribunda |
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Phenology | Flowering May–Jul. | Flowering (May–)Jun–Aug(–Sep). |
Habitat | Stream and lake sides, gravel bars, springs, moist slopes, damp swales between dunes, along trails. | Under overhangs, moist roofs of caves, wet rock crevices, cliff faces, wet cliff bases, below waterfalls, seeps, springs, humus and moist soils over rocks and slabs, moist slopes, ditches and pond edges, wet edges of creeks and rivers, drying mud on margins of wetland depressions, creek beds, wet or swampy meadows, along trails, in lodgepole pine, ponderosa pine, ponderosa pine-Douglas fir, and spruce-fir woodlands. |
Elevation | 700–2300 m. (2300–7500 ft.) | (100–)1800–2600(–3100) m. ((300–)5900–8500(–10200) ft.) |
Distribution |
CA; ID; MT; NV; OR; WA; BC
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AR; AZ; CA; CO; ID; MT; NM; NV; OR; SD; UT; WA; WY; AB; BC; Mexico (Baja California, Baja California Sur, Chihuahua, Sinaloa, Sonora)
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Discussion | Some plants identified here as Erythranthe floribunda in Arizona and southwestern New Mexico are distinctive in their prominently inflated calyces, sessile to subsessile leaves with attenuate bases and palmately three- to five-veined venation, and much-elongated pedicels (20–43 mm); numerous intermediates in Arizona make it difficult to conclude that the variants represent an entity discontinuous from plants of typical morphology. The variant morphology has not been observed among Mexican populations. Further discussion of this situation was given by G. L. Nesom (2012h). Erythranthe floribunda has been documented from 12 counties in northern Arkansas (Carroll, Cleburne, Crawford, Franklin, Izard, Johnson, Logan, Newton, Pope, Searcy, Stone, and Washington), where it occurs at 300–500 m. The unpublished name Mimulus floribundus subsp. moorei Iltis appears in various checklists in reference to the Arkansas plants, but there appears to be no basis for treating them as distinct from the rest of the species. Elsewhere in the main range (western states), scattered variants extremely reduced in size, leaves, flowers, and overall stature appear to be at the lower limits of the species rather than taxonomically distinct. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 17, p. 399. | FNA vol. 17, p. 404. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus breviflorus | Mimulus floribundus, M. deltoideus, M. floribundus var. membranaceus, M. membranaceus, M. peduncularis, M. serotinus |
Name authority | (Piper) G. L. Nesom: Phytoneuron 2012-39: 38. (2012) | (Lindley) G. L. Nesom: Phytoneuron 2012-39: 38. (2012) |
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