Erythranthe breweri |
Erythranthe regni |
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Brewer's monkey-flower |
King of Arizona monkeyflower |
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Habit | Annuals, taprooted. | Annuals, fibrous-rooted, sometimes rooting at proximal nodes. |
Stems | erect, simple or branched from basal nodes, 2–20 cm, densely glandular-puberulent, hairs 0.05–0.1 mm, gland-tipped. |
erect to ascending-erect, branched, sometimes becoming slightly fistulose, 15–45 cm, glabrous. |
Leaves | cauline, basal not persistent; petiole 1–4 mm; blade 1-veined or palmately 3-veined (in broader ones), linear-oblanceolate to linear-lanceolate or linear, (5–)10–15(–20) × 1–2(–5) mm, base attenuate, margins entire or remotely mucronulate distally, apex acute, surfaces densely glandular-puberulent, hairs 0.05–0.1 mm, gland-tipped. |
basal and cauline; petiole: proximals 5–25(–30) mm, mid cauline and distals not connate, 0 mm; blade palmately 5–7-veined, proximal sometimes subpinnate, proximals ovate to depressed-orbicular, 15–20(–50) × 15–25(–50) mm, medials and distals broadly depressed-ovate to obtriangular or flabellate, 15–35 mm, largest basal or at mid stem with distal slightly reduced, base attenuate-cuneate, margins shallowly serrate-dentate, sometimes irregularly, to mucronulate or apiculate, teeth (3–)5–7 per side, rarely subentire, apex rounded, surfaces glabrous. |
Flowers | herkogamous, 1–8, from medial to distal nodes. |
plesiogamous, 6–16, from all nodes or medial to distal, cleistogamous. |
Styles | glabrous. |
glabrous. |
Corollas | pink to red, rose red, red-purple, or lavender, throat usually light purple to lavender (similar in color to rest of corolla), palate ridges yellow, abaxial limb with deep pink markings, bilaterally symmetric, strongly bilabiate; tube-throat cylindric-funnelform, 3–7 mm, exserted 0–1 mm beyond calyx margin; limb expanded 2–3 mm, lobes notched or entire. |
yellow, not red-dotted, bilaterally or radially symmetric, bilabiate or regular; tube-throat cylindric-funnelform, 9–12 mm, exserted 3–5 mm beyond calyx margin; limb expanded 1–1.5 mm. |
Fruiting pedicels | 4–12 mm, densely glandular-puberulent, hairs 0.05–0.1 mm, gland-tipped. |
15–30 mm, longer than subtending leaves, glabrous. |
Fruiting calyces | red-dotted, strongly angled, cylindric-campanulate, 4–7 mm, margins distinctly toothed or lobed, densely glandular-puberulent, hairs 0.05–0.1 mm, gland-tipped, ribs corky, lobes pronounced, spreading. |
sparsely purple-dotted, broadly campanulate-cylindric, inflated, sagittally compressed, 7–9 mm, glabrous, throat not closing, adaxial lobe longest. |
Capsules | included, 3–7 mm. |
included, 4–5 mm. |
Anthers | included, glabrous. |
included, glabrous. |
Erythranthe breweri |
Erythranthe regni |
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Phenology | Flowering Jun–Aug(–Sep). | Flowering Mar–May. |
Habitat | Seeps and springs, damp rocks, vernal creek beds, cliffs, granite outcrops, rocky ridges, gravelly areas, meadow edges, stream edges. | Moist to wet, sandy loam soils. |
Elevation | (700–)1300–3500 m. ((2300–)4300–11500 ft.) | 800–1000 m. (2600–3300 ft.) |
Distribution |
AZ; CA; ID; MT; NV; OR; UT; WA; WY; AB; BC
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AZ |
Discussion | Erythranthe regni is endemic to the Kofa Mountains of Yuma County; all collections have been made from the Kofa Game Refuge (Kofa National Wildlife Refuge). Because its calyces remain open at maturity, this species is hypothesized to be most closely related to E. geyeri, from which it differs by its erect habit, apparently annual duration, larger leaves, purple-dotted calyces, and corollas with longer tube-throat and barely bilabiate limb. Geography and other morphology, however, suggest that its evolutionary origins are closer to E. guttata. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 17, p. 390. | FNA vol. 17, p. 406. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Eunanus breweri, Mimulus breweri, M. rubellus var. breweri | |
Name authority | (Greene) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 36. (2012) | G. L. Nesom: Phytoneuron 2012-40: 24. (2012) |
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