Erythranthe geyeri |
Erythranthe suksdorfii |
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Geyer's monkeyflower, mimule de James |
miniature monkey-flower, sukdorf's monkeyflower, Suksdorf's monkey-flower |
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Habit | Perennials, rhizomatous, rooting at nodes. | Annuals, taprooted, densely compact. |
Stems | decumbent-ascending to ascending or erect-ascending, branched, (3–)10–40 cm, glabrous. |
erect, simple or many-branched from basal nodes, 0.5–10(–13) cm, minutely puberulent, internodes shortened, not evident. |
Leaves | cauline, basal not persistent; petiole 3–10(–20) mm or 0 mm distally; blade palmately 3–5-veined, suborbicular to depressed-ovate or broadly elliptic-ovate to reniform, 6–25 mm, relatively even-sized or largest often at mid stem, bracteal reduced, base cuneate to truncate or subcordate, margins shallowly dentate to crenate-dentate, teeth 3–7(–10) per side, apex rounded, adaxial surface of distals sparsely short villous-glandular or glabrous. |
cauline, basal not persistent; petiole 0 mm; blade 1-veined or palmately 3-veined (in broader ones), linear to lanceolate or ovate, 2–20(–25) × 0.5–4 mm, base attenuate, margins entire, apex acute to obtuse, surfaces minutely puberulent. |
Flowers | plesiogamous, 2–8(–12), from distal nodes, sometimes from most nodes, very loosely racemose. |
herkogamous or plesiogamous, 1–72, from distal or medial to distal nodes. |
Styles | glabrous. |
glabrous. |
Corollas | yellow, sparsely red-dotted or not, bilaterally symmetric, weakly bilabiate; tube-throat cylindric-funnelform, 6–8 mm, exserted 1–3 mm beyond calyx margin; limb expanded 5–8 mm. |
yellow, throat sometimes with red markings, abaxial limb sometimes with a red dot, bilaterally symmetric, weakly bilabiate; tube-throat cylindric, indistinct from throat, 4–6 mm, exserted beyond calyx margin; limb expanded 2–3 mm, lobes entire or weakly notched, palate glabrous or sparsely bearded. |
Fruiting pedicels | 18–30 mm, sparsely short villous-glandular or glabrous. |
2–10 mm. |
Fruiting calyces | obtriangular to broadly obtriangular or deeply cupulate, inflated, sagittally compressed, (7–)8–12 mm, sparsely short villous-glandular or glabrous, throat not closing, lateral lobes shallowly convex-mucronulate, adaxial ovate with apex rounded. |
cylindric to urn-shaped, 3–6 mm, margins distinctly toothed or lobed, glabrous or minutely puberulent, ribs thickened, lobes pronounced, erect. |
Capsules | included, (4.5–)5–8 mm. |
included, 3–6 mm. |
Anthers | included, glabrous. |
included, glabrous. |
2n | = 30. |
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Erythranthe geyeri |
Erythranthe suksdorfii |
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Phenology | Flowering May–Aug(–Oct). | Flowering Apr–Aug. |
Habitat | Edges of flowing streams, marsh edges, drainage ditches, seepage areas, springs, muddy or moist banks. | Moist, generally loamy to clay soils in open areas. |
Elevation | 200–2500 m. (700–8200 ft.) | 700–4200 m. (2300–13800 ft.) |
Distribution |
AZ; CO; IA; IL; KS; MI; MN; MO; NE; NM; OK; PA; SD; TX; WI; WY; AB; MB; ON; QC; SK; Mexico (Chihuahua, Coahuila, Distrito Federal, Durango, Hidalgo, Nuevo León, México, Querétaro, San Luis Potosí, Sonora, Veracruz, Zacatecas)
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AZ; CA; ID; MT; NM; NV; OR; UT; WA; WY; BC
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Discussion | Erythranthe geyeri has commonly been regarded as conspecific with E. glabrata (Kunth) G. L. Nesom (as Mimulus glabratus var. jamesii), but typical E. glabrata has a different chromosome number and distinct morphology and its range does not reach the United States. In Mexico, the two species are broadly sympatric without intermediates. An allozyme study of the M. glabratus complex (R. K. Vickery 1990) indicated that the Great Plains populations of E. geyeri are distinct from those in New Mexico and Mexico, corresponding to a difference in pedicel vestiture. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 17, p. 406. | FNA vol. 17, p. 384. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus geyeri, M. glabratus var. fremontii, M. glabratus var. jamesii, M. glabratus var. oklahomensis, M. jamesii, M. jamesii var. fremontii | Mimulus suksdorfii |
Name authority | (Torrey) G. L. Nesom: Phytoneuron 2012-39: 43. (2012) | (A. Gray) N. S. Fraga: Phytoneuron 2012-39: 35. (2012) |
Web links |
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