Erythranthe decora |
Erythranthe utahensis |
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mannered monkeyflower, northwestern monkey -flower, sharp-leaf monkey-flower, showy monkey-flower |
Utah monkeyflower |
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Habit | Perennials, rhizomatous, sometimes producing numerous, long, remotely leafy runners from basal cauline nodes. | Perennials, rhizomatous, rooting at nodes, rhizomes filiform. |
Stems | erect, simple, 20–100 cm, distals densely, minutely hirtellous. |
erect, sometimes decumbent-ascending proximally, simple or few-branched, 20–50 cm, glabrous or sparsely stipitate-glandular in inflorescence. |
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. |
basal and cauline, even-sized or largest near mid stem; petiole 0 mm or proximalmost 2–10 mm; blade palmately 3–5-veined, orbicular or suborbicular to broadly elliptic, broadly ovate, or depressed-ovate, 20–40(–75) × 12–35(–40) mm, base usually truncate to broadly cuneate, margins entire or subentire to mucronulate, shallowly dentate, or denticulate, apex rounded, surfaces glabrous or glabrate to sparsely stipitate-glandular and sparsely pilose, hairs thin-walled, abaxial often glaucous. |
Flowers | herkogamous, (1 or)2–7(–14), from distal nodes. |
herkogamous, 6–16, from proximal to distal nodes, in a loose raceme, distal bracts becoming much reduced. |
Styles | minutely, prominently hirsutulous to villosulous. |
hirtellous. |
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, abaxial limb prominently darker yellow, sparsely purple-spotted, bilaterally symmetric, weakly bilabiate; tube-throat narrowly funnelform to broadly cylindric, 10–15 mm, exserted 5–8 mm beyond calyx margin; limb expanded 12–20 mm. |
Fruiting pedicels | 18–35(–40) mm, distals densely, minutely hirtellous, hairs often slightly deflexed. |
(25–)40–75 mm, stipitate-glandular to short villous, hairs gland-tipped. |
Fruiting calyces | green, sometimes red-spotted, ovoid, inflated, sagittally compressed, 15–19 mm, distals densely, minutely hirtellous, throat closing, lobe margins (sinuses) villous. |
broadly ovate-cylindric, inflated, sagittally compressed, (10–)11–17(–20) mm, stipitate-glandular or minutely hirtellous or a mixture, hairs sometimes also longer, thin-walled, eglandular or glandular, throat not closing, adaxial lobe slightly longer, triangular-blunt. |
Capsules | included, 8–10 mm. |
included, 5–7 mm. |
Anthers | included, glabrous. |
included, glabrous. |
2n | = 28, 30. |
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Erythranthe decora |
Erythranthe utahensis |
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Phenology | Flowering May–Aug. | Flowering (Feb–)May–Aug(–Oct). |
Habitat | River banks, streamsides, dripping banks, moist meadows. | Drainage ditches, springs, seeps, wet meadows, margins of ponds and small streams, marshy areas. |
Elevation | 1000–1600 m. (3300–5200 ft.) | 1400–2500 m. (4600–8200 ft.) |
Distribution |
ID; OR; WA; BC
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CA; CO; NV; UT |
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 utahensis is characterized by its erect stems, prolifically produced filiform rhizomes, basal leaves short-petiolate to subsessile and cauline sessile, blades suborbicular to broadly ovate or depressed ovate with thin-walled villous-glandular hairs on both surfaces, margins subentire, proximal pedicels elongating to 75 mm, and calyces open at maturity. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 414. | FNA vol. 17, p. 410. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus guttatus var. decorus, M. decorus | Mimulus glabratus subsp. utahensis |
Name authority | (A. L. Grant) G. L. Nesom: Phytoneuron 2012-39: 43. (2012) | (Pennell) G. L. Nesom: Phytoneuron 2012-39: 44. (2012) |
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