Erythranthe washingtonensis |
Erythranthe decora |
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John Day or Washington monkeyflower, Washington monkey-flower |
mannered monkeyflower, northwestern monkey -flower, sharp-leaf monkey-flower, showy monkey-flower |
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Habit | Annuals, fibrous-rooted or filiform-taprooted. | Perennials, rhizomatous, sometimes producing numerous, long, remotely leafy runners from basal cauline nodes. |
Stems | erect to ascending, straight or geniculate at nodes, usually many-branched, terete, 5–25 cm, moderately puberulent-glandular to villous-glandular, hairs 0.1–0.8 mm, flattened, sometimes vitreous, distinctly multicellular, gland-tipped. |
erect, simple, 20–100 cm, distals densely, minutely hirtellous. |
Leaves | cauline, basal not persistent; petiole 2–14 mm; blade palmately veined, deltate or ovate to ovate-lanceolate, 4–16(–23) × 2–11(–16) mm, base rounded to cuneate or truncate, margins denticulate or entire, apex acute, surfaces moderately puberulent-glandular to villous-glandular, hairs 0.1–0.8 mm, flattened, sometimes vitreous, distinctly multicellular, gland-tipped. |
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. |
Flowers | herkogamous, 1–6, from proximal to distal nodes. |
herkogamous, (1 or)2–7(–14), from distal nodes. |
Styles | hispid-hirtellous. |
minutely, prominently hirsutulous to villosulous. |
Corollas | yellow with small reddish brown dots, abaxial limb with 2 white patches (abaxial ridges), bilaterally symmetric, strongly bilabiate; tube-throat funnelform, 8–10 mm, exserted beyond calyx margin; limb expanded 7–10 mm, lobes obovate-oblong, apex rounded to rounded-cuneate. |
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. |
Fruiting pedicels | divergent at nearly right angles, 20–50 mm, densely, minutely stipitate-glandular. |
18–35(–40) mm, distals densely, minutely hirtellous, hairs often slightly deflexed. |
Fruiting calyces | greenish, ridge-angled, tubular, weakly inflated, 6–8 mm, margins distinctly toothed or lobed, densely, minutely stipitate-glandular, lobes pronounced, erect. |
green, sometimes red-spotted, ovoid, inflated, sagittally compressed, 15–19 mm, distals densely, minutely hirtellous, throat closing, lobe margins (sinuses) villous. |
Capsules | included, 5–8.5 mm. |
included, 8–10 mm. |
Anthers | included, glabrous. |
included, glabrous. |
2n | = 32. |
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Erythranthe washingtonensis |
Erythranthe decora |
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Phenology | Flowering May–Sep. | Flowering May–Aug. |
Habitat | Shallow basalt gravel in narrow channels and intermittent streams, sandy stream banks, open slopes, rocky shelves near seeps. | River banks, streamsides, dripping banks, moist meadows. |
Elevation | 700–1300 m. (2300–4300 ft.) | 1000–1600 m. (3300–5200 ft.) |
Distribution |
OR
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ID; OR; WA; BC
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Discussion | Erythranthe washingtonensis is considered to be extirpated in Washington by the Washington Natural Heritage Program. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
Source | FNA vol. 17, p. 396. | FNA vol. 17, p. 414. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus washingtonensis | Mimulus guttatus var. decorus, M. decorus |
Name authority | (Gandoger) G. L. Nesom: Phytoneuron 2012-39: 39. (2012) — (as washingtoniensis) | (A. L. Grant) G. L. Nesom: Phytoneuron 2012-39: 43. (2012) |
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