Erythranthe geyeri |
Erythranthe sierrae |
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Geyer's monkeyflower, mimule de James |
Sierra Nevada monkeyflower |
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Habit | Perennials, rhizomatous, rooting at nodes. | Annuals, taprooted. |
Stems | decumbent-ascending to ascending or erect-ascending, branched, (3–)10–40 cm, glabrous. |
erect, simple or branched from basal nodes, (3–)4–20 cm, minutely glandular. |
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 oblanceolate, 3–23 × 1–10 mm, base attenuate, margins entire, sometimes toothed, apex acute, surfaces minutely glandular. |
Flowers | plesiogamous, 2–8(–12), from distal nodes, sometimes from most nodes, very loosely racemose. |
herkogamous, 1–38, 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. |
pale pink, abaxial limb with 2 yellow ridges, bilaterally symmetric, strongly bilabiate; tube-throat funnelform, 5–15 mm, exserted beyond calyx margin; limb expanded 5–17 mm, lobes deeply notched, abaxial limb glabrous or sparsely puberulent. |
Fruiting pedicels | 18–30 mm, sparsely short villous-glandular or glabrous. |
10–33(–40) 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. |
sometimes red-spotted, campanulate to cylindric, 4–8 mm, margins distinctly toothed or lobed, minutely glandular, ribs weak, lobes pronounced, erect, margins ciliate. |
Capsules | included, (4.5–)5–8 mm. |
included, 4–9 mm. |
Anthers | included, glabrous. |
included, glabrous. |
2n | = 30. |
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Erythranthe geyeri |
Erythranthe sierrae |
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Phenology | Flowering May–Aug(–Oct). | Flowering Apr–Jul. |
Habitat | Edges of flowing streams, marsh edges, drainage ditches, seepage areas, springs, muddy or moist banks. | Foothill oak woodlands, mixed coniferous forests. |
Elevation | 200–2500 m. (700–8200 ft.) | 200–2300 m. (700–7500 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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CA |
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.) |
Erythranthe sierrae is endemic to the southern Sierra Nevada in Fresno, Kern, and Tulare counties. The species was previously treated as E. palmeri but can be distinguished by having leaf margins that are often toothed, pale pink corollas, and white stamens. Erythranthe palmeri has entire leaf margins that are never toothed, deep pink to purple corollas, and yellow stamens. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 406. | FNA vol. 17, p. 385. |
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 | |
Name authority | (Torrey) G. L. Nesom: Phytoneuron 2012-39: 43. (2012) | N. S. Fraga: Aliso 30: 67, figs. 29–31. (2012) |
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