Erythranthe decora |
Erythranthe dentata |
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mannered monkeyflower, northwestern monkey -flower, sharp-leaf monkey-flower, showy monkey-flower |
coast monkeyflower, coastal monkey-flower, tooth-leaf monkey-flower |
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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 to erect-ascending, simple or few-branched, 15–40 cm, coarsely pilose to hirsute-pilose, glabrescent, internodes evident. |
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–)2–12 mm, not winged, distally sometimes sessile, subclasping; blade pinnately veined, lanceolate to ovate-lanceolate or elliptic-ovate, 25–75 mm, thick, base rounded to cuneate, margins coarsely dentate to serrate, apex acute to obtuse, surfaces coarsely pilose to hirsute-pilose, glabrescent. |
Flowers | herkogamous, (1 or)2–7(–14), from distal nodes. |
herkogamous, 1–5, from 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. |
yellow, palate and throat brown to reddish brown-spotted, bilaterally symmetric, ± bilabiate; tube-throat funnelform, 15–26 mm, exserted beyond calyx margin; throat open, palate villous, abaxial ridges low. |
Fruiting pedicels | 18–35(–40) mm, distals densely, minutely hirtellous, hairs often slightly deflexed. |
12–25(–50) mm. |
Fruiting calyces | green, sometimes red-spotted, ovoid, inflated, sagittally compressed, 15–19 mm, distals densely, minutely hirtellous, throat closing, lobe margins (sinuses) villous. |
narrowly campanulate, not or weakly inflated, 9–14 mm, villous-hirsute on ribs. |
Capsules | included, 8–10 mm. |
included, 8–9 mm. |
Anthers | included, glabrous. |
included, short villous-hirsute. |
Erythranthe decora |
Erythranthe dentata |
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Phenology | Flowering May–Aug. | Flowering May–Aug. |
Habitat | River banks, streamsides, dripping banks, moist meadows. | Stream banks. |
Elevation | 1000–1600 m. (3300–5200 ft.) | 20–400 m. (100–1300 ft.) |
Distribution |
ID; OR; WA; BC
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CA; OR; WA; BC
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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 dentata is distinctive and rarely misidentified. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 414. | FNA vol. 17, p. 405. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus guttatus var. decorus, M. decorus | Mimulus dentatus |
Name authority | (A. L. Grant) G. L. Nesom: Phytoneuron 2012-39: 43. (2012) | (Nuttall ex Bentham) G. L. Nesom: Phytoneuron 2012-39: 41. (2012) |
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