Erythranthe erubescens |
Erythranthe regni |
|
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California blushing monkeyflower |
King of Arizona monkeyflower |
|
Habit | Perennials, rhizomatous. | Annuals, fibrous-rooted, sometimes rooting at proximal nodes. |
Stems | erect, usually simple, 25–90 cm, stipitate-glandular to glandular-villous. |
erect to ascending-erect, branched, sometimes becoming slightly fistulose, 15–45 cm, glabrous. |
Leaves | cauline; petiole 0 mm; blade palmately veined, elliptic to ovate, ovate-lanceolate, or lanceolate, (20–)30–90 × 5–25(–35) mm, base rounded to cuneate, subclasping, margins denticulate, subentire, or entire, apex acute, surfaces stipitate-glandular to glandular-villous. |
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, 2–8, axillary at leafy medial to distal nodes. |
plesiogamous, 6–16, from all nodes or medial to distal, cleistogamous. |
Styles | glabrous. |
glabrous. |
Corollas | light pink, darker pink stripes down middle of each lobe, abaxial 3 lobes with a white basal patch, palate ridges yellow, bilaterally symmetric, strongly bilabiate; tube-throat funnelform, 20–30 mm, exserted beyond calyx margins; lobe apex usually truncate, shallowly retuse, throat open. |
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 | 45–90 mm. |
15–30 mm, longer than subtending leaves, glabrous. |
Fruiting calyces | cylindric-campanulate, not inflated, 15–22 mm, stipitate-glandular to glandular-villous, tube 14–19 × 6–8 mm, lobes subequal to distinctly unequal, ovate, apex linear-caudate. |
sparsely purple-dotted, broadly campanulate-cylindric, inflated, sagittally compressed, 7–9 mm, glabrous, throat not closing, adaxial lobe longest. |
Capsules | included, 7–13 mm. |
included, 4–5 mm. |
Anthers | included, white-villous, thecae spreading. |
included, glabrous. |
2n | = 16. |
|
Erythranthe erubescens |
Erythranthe regni |
|
Phenology | Flowering Jul–Aug. | Flowering Mar–May. |
Habitat | Springs and seeps, meadows, cliffs, steep rocky slopes, ridges. | Moist to wet, sandy loam soils. |
Elevation | (1400–)1800–3000(–3500) m. ((4600–)5900–9800(–11500) ft.) | 800–1000 m. (2600–3300 ft.) |
Distribution |
CA; NV
|
AZ |
Discussion | Erythranthe erubescens was long identified as E. lewisii but is distinct in its light pink corollas (versus mostly magenta-rose to purplish in E. lewisii), more broadly cylindric calyx tube [14–19 × 6–8 mm versus 12–15(–17) × 9–12 mm], and its geographic range in the Sierra Nevada of California (versus widespread from southern Alaska south to northwestern California, northern Utah, eastern Nevada, and northern Colorado in E. lewisii). The two are genetically isolated and phylogenetically distinct (see summary of evidence in G. L. Nesom 2014b). In California, Erythranthe erubescens ranges from Modoc, Plumas, and Tehama counties south to Fresno County; in Nevada, it is known only from Washoe County and Carson City. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
Source | FNA vol. 17, p. 393. | FNA vol. 17, p. 406. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Name authority | G. L. Nesom: Phytoneuron 2014-31: 12, figs. 11–13. (2014) | G. L. Nesom: Phytoneuron 2012-40: 24. (2012) |
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