Erythranthe decora |
Erythranthe scouleri |
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mannered monkeyflower, northwestern monkey -flower, sharp-leaf monkey-flower, showy monkey-flower |
Columbia River monkey-flower, Scouler's monkey-flower |
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Habit | Perennials, rhizomatous, sometimes producing numerous, long, remotely leafy runners from basal cauline nodes. | Perennials, rhizomatous, producing long, sparsely leafy runners from basal nodes. |
Stems | erect, simple, 20–100 cm, distals densely, minutely hirtellous. |
erect, simple or few-branched, 15–80 cm, glabrous. |
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, basal usually not persistent; petiole: proximals and medial 10–25 mm (gradually merging into blade), distals 0 mm; blade palmately (3–)5–7-veined to subpinnate, (proximal to medial) oblong-elliptic to oblong-lanceolate, 25–60 × 8–18 mm, usually 3–4 times longer than wide, base attenuate, margins evenly, shallowly dentate or crenate to mucronate or mucronulate, teeth 10–20 per side, sometimes more deeply toothed at base, apex obtuse to acute, surfaces glabrous. |
Flowers | herkogamous, (1 or)2–7(–14), from distal nodes. |
herkogamous, (1 or)2–8, from distal nodes. |
Styles | minutely, prominently hirsutulous to villosulous. |
minutely, prominently hirsutulous to villosulous. |
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. |
yellow, without red markings, bilaterally symmetric, bilabiate; tube-throat funnelform, 20–24 mm, exserted 10–15 mm beyond calyx margin; limb expanded 22–30 mm. |
Fruiting pedicels | 18–35(–40) mm, distals densely, minutely hirtellous, hairs often slightly deflexed. |
20–25 mm, glabrous. |
Fruiting calyces | green, sometimes red-spotted, ovoid, inflated, sagittally compressed, 15–19 mm, distals densely, minutely hirtellous, throat closing, lobe margins (sinuses) villous. |
ovoid, inflated, sagittally compressed, 13–14 mm, glabrous, throat closing. |
Capsules | included, 8–10 mm. |
unknown. |
Anthers | included, glabrous. |
included, glabrous. |
Erythranthe decora |
Erythranthe scouleri |
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Phenology | Flowering May–Aug. | Flowering May–Aug. |
Habitat | River banks, streamsides, dripping banks, moist meadows. | Salt marshes, river banks. |
Elevation | 1000–1600 m. (3300–5200 ft.) | 0–20 m. (0–100 ft.) |
Distribution |
ID; OR; WA; BC
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OR; WA |
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 scouleri is distinctive in its oblong-elliptic leaves with long-tapering bases and closely toothed margins, completely glabrous vestiture, long, leafy runners from basal cauline nodes, large corollas with broad limbs, and prominently hairy styles. Several features suggest a close relationship to E. decora, particularly its very large corollas, hairy styles, closely toothed leaf margins, tall, simple, and erect stems, numerous runners, and its geographic range. All collections apparently have been made near the mouth of the Columbia River in Clatsop and Columbia counties, Oregon (G. L. Nesom 2013d). Recent observations (Alexander John Wright, pers. comm.; photos http://www.inaturalist.org/observations/3537008) indicate that it also occurs in Wahkiakum County, Washington, in the Julia Butler Hansen Refuge. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 414. | FNA vol. 17, p. 415. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus guttatus var. decorus, M. decorus | Mimulus scouleri, M. guttatus subsp. scouleri |
Name authority | (A. L. Grant) G. L. Nesom: Phytoneuron 2012-39: 43. (2012) | (Hooker) G. L. Nesom: Phytoneuron 2012-39: 44. (2012) |
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