Erythranthe decora |
Erythranthe erubescens |
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mannered monkeyflower, northwestern monkey -flower, sharp-leaf monkey-flower, showy monkey-flower |
California blushing monkeyflower |
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Habit | Perennials, rhizomatous, sometimes producing numerous, long, remotely leafy runners from basal cauline nodes. | Perennials, rhizomatous. |
Stems | erect, simple, 20–100 cm, distals densely, minutely hirtellous. |
erect, usually simple, 25–90 cm, stipitate-glandular to glandular-villous. |
Leaves | cauline, basal usually not persistent; petiole: proximals 8–25 mm, midcauline 3–5 mm, distalmost 0 mm; blade palmately (3–)5–7-veined, broadly ovate-triangular to ovate-lanceolate, 20–50(–60) × 10–30(–40) mm, usually 1–2 times longer than wide, base rounded to truncate to shallowly cuneate, margins dentate, teeth sharp-pointed, apex acute, surfaces sometimes glabrate, distals densely, minutely hirtellous. |
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. |
Flowers | herkogamous, (1 or)2–7(–14), from distal nodes. |
herkogamous, 2–8, axillary at leafy medial to distal nodes. |
Styles | minutely, prominently hirsutulous to villosulous. |
glabrous. |
Corollas | yellow to chrome yellow, throat floor and tube usually red-spotted, bilaterally symmetric, bilabiate; tube-throat broadly funnelform, 18–26 mm, exserted (8–)10–15 mm beyond calyx margin; limb expanded 22–30 mm. |
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. |
Fruiting pedicels | 18–35(–40) mm, distals densely, minutely hirtellous, hairs often slightly deflexed. |
45–90 mm. |
Fruiting calyces | green, sometimes red-spotted, ovoid, inflated, sagittally compressed, 15–19 mm, distals densely, minutely hirtellous, throat closing, lobe margins (sinuses) villous. |
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. |
Capsules | included, 8–10 mm. |
included, 7–13 mm. |
Anthers | included, glabrous. |
included, white-villous, thecae spreading. |
2n | = 16. |
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Erythranthe decora |
Erythranthe erubescens |
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Phenology | Flowering May–Aug. | Flowering Jul–Aug. |
Habitat | River banks, streamsides, dripping banks, moist meadows. | Springs and seeps, meadows, cliffs, steep rocky slopes, ridges. |
Elevation | 1000–1600 m. (3300–5200 ft.) | (1400–)1800–3000(–3500) m. ((4600–)5900–9800(–11500) ft.) |
Distribution |
ID; OR; WA; BC
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CA; NV
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Discussion | Erythranthe decora is distinct in its uniformly ovate to ovate-lanceolate leaf blades with truncate bases and regularly toothed margins, relatively long internodes, rhizomatous habit, mostly unbranched stems, often with leafy runners from basal nodes, large corollas, hairy styles, and minutely hirtellous stems, pedicels, calyces, and leaf surfaces. The densely produced rhizomes suggest a relationship with the E. tilingii group. A population in Clearwater County, Idaho, appears to be long-disjunct from the main range of the species in northwestern Oregon and the western half of Washington. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
Source | FNA vol. 17, p. 414. | FNA vol. 17, p. 393. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus guttatus var. decorus, M. decorus | |
Name authority | (A. L. Grant) G. L. Nesom: Phytoneuron 2012-39: 43. (2012) | G. L. Nesom: Phytoneuron 2014-31: 12, figs. 11–13. (2014) |
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