Erythranthe geyeri |
Erythranthe shevockii |
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Geyer's monkeyflower, mimule de James |
Kelso Creek monkeyflower, Kelso Creek or Shevock's 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, 2–12 cm, minutely puberulent or glabrous. |
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 palmately 3-veined (in broader ones), lanceolate to ovate, 3–10 × 1–5 mm, base truncate to truncate-cordate, clasping, margins entire, apex acute to obtuse, surfaces minutely puberulent or glabrous. |
Flowers | plesiogamous, 2–8(–12), from distal nodes, sometimes from most nodes, very loosely racemose. |
herkogamous, 1–16, 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. |
maroon and yellow, 2 lateral lobes maroon, 1 much larger central lobe yellow (red-spotted), 2 adaxial lobes maroon, bilaterally symmetric, strongly bilabiate; tube-throat cylindric, 8–12 mm, exserted 2–3 mm beyond calyx margin; limb expanded 8–15 mm, central lobe 2-fid, abaxial limb sparsely villous-bearded. |
Fruiting pedicels | 18–30 mm, sparsely short villous-glandular or glabrous. |
ascending to often spreading horizontally, 10–22 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. |
red-spotted or red, campanulate, 4–7 mm, margins distinctly toothed or lobed, minutely puberulent or glabrous, ribs weak, lobes pronounced, erect, margins glabrous. |
Capsules | included, (4.5–)5–8 mm. |
included, 5–6 mm. |
Anthers | included, glabrous. |
included, glabrous. |
2n | = 30. |
= 32. |
Erythranthe geyeri |
Erythranthe shevockii |
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Phenology | Flowering May–Aug(–Oct). | Flowering Mar–May. |
Habitat | Edges of flowing streams, marsh edges, drainage ditches, seepage areas, springs, muddy or moist banks. | Level openings in juniper and Joshua tree woodlands. |
Elevation | 200–2500 m. (700–8200 ft.) | 900–1400 m. (3000–4600 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
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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.) |
Erythranthe shevockii is known only from the southernmost Sierra Nevada in Kern County. It (as Mimulus shevockii) is in the Center for Plant Conservation’s National Collection of Endangered Plants. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 406. | FNA vol. 17, p. 389. |
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 shevockii |
Name authority | (Torrey) G. L. Nesom: Phytoneuron 2012-39: 43. (2012) | (Heckard & Bacigalupi) N. S. Fraga: Phytoneuron 2012-39: 35. (2012) |
Web links |
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