Erythranthe erubescens |
Erythranthe primuloides |
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California blushing monkeyflower |
primrose monkey-flower |
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Habit | Perennials, rhizomatous. | Perennials, rhizomatous or stoloniferous, mat-forming, rhizomes or stolons flagelliform. |
Stems | erect, usually simple, 25–90 cm, stipitate-glandular to glandular-villous. |
erect to ascending, usually simple, 2–10(–20) cm, villous, internodes shortened. |
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. |
all basal or near basal, often rosulate; petiole 0 mm; blade palmately 3-veined, oblanceolate to elliptic-obovate, 7–40 × 4–12 mm, base cuneate to attenuate, margins entire, distally denticulate to dentate, or sharply serrate-dentate, apex acute to obtuse, abaxial surface glabrous, adaxial glabrous or glabrate to sparsely to densely long-villous, eglandular. |
Flowers | herkogamous, 2–8, axillary at leafy medial to distal nodes. |
herkogamous, 1. |
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 to orange-yellow, usually brown-spotted abaxially, base of each abaxial lobe usually with a larger reddish brown spot, bilaterally or nearly radially symmetric, weakly bilabiate or nearly regular, densely hirsute on abaxial side of opening; tube-throat narrowly campanulate, 15–20 mm, exserted beyond calyx margin; lobes broadly obovate-oblong, apex rounded- or truncate-notched, throat open, palate densely villous, abaxial ridges prominent. |
Fruiting pedicels | 45–90 mm. |
30–110(–130) mm, glabrous or sparsely stipitate-glandular near base. |
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. |
tubular-campanulate, weakly or not inflated, 6–8 mm, glabrous. |
Capsules | included, 7–13 mm. |
included, 6–7 mm. |
Anthers | included, white-villous, thecae spreading. |
slightly exserted, margins ciliate, glabrous. |
2n | = 16. |
= 34. |
Erythranthe erubescens |
Erythranthe primuloides |
|
Phenology | Flowering Jul–Aug. | Flowering Jun–Aug. |
Habitat | Springs and seeps, meadows, cliffs, steep rocky slopes, ridges. | Wet meadows, seeps, streamsides. |
Elevation | (1400–)1800–3000(–3500) m. ((4600–)5900–9800(–11500) ft.) | 600–3400 m. (2000–11200 ft.) |
Distribution |
CA; NV
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AZ; CA; ID; MT; NM; NV; OR; UT; WA
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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.) |
Flowers in Erythranthe primuloides and E. linearifolia characteristically appear to be scapose, but the scapes are pedicels arising from axils of greatly foreshortened stems. Occasionally in both species the internodes may lengthen somewhat, and the leaves are not so densely clustered at the base of the stems. In northern Klamath, western Deschutes, and eastern Douglas counties, Oregon, an area within the range of typical populations, Erythranthe primuloides has distinctively large corollas (limbs 10–15 mm wide). Apparent clones of large-flowered and smaller-flowered plants sometimes grow in close proximity or even intermixed, appearing as two different entities. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 393. | FNA vol. 17, p. 389. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus primuloides, M. nevadensis, M. pilosellus, M. primuloides var. minimus, M. primuloides var. pilosellus | |
Name authority | G. L. Nesom: Phytoneuron 2014-31: 12, figs. 11–13. (2014) | (Bentham) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 35. (2012) |
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