Erythranthe decora |
Erythranthe charlestonensis |
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mannered monkeyflower, northwestern monkey -flower, sharp-leaf monkey-flower, showy monkey-flower |
Charleston Mountains monkeyflower |
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Habit | Perennials, rhizomatous, sometimes producing numerous, long, remotely leafy runners from basal cauline nodes. | Annuals, fibrous-rooted, usually dark purplish. |
Stems | erect, simple, 20–100 cm, distals densely, minutely hirtellous. |
erect, simple, weakly 4-angled, 4–16(–24) cm, slender, glabrous or sparsely villous-glandular near nodes. |
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, basal usually persistent, largest at mid stem or above, cauline relatively few on long internodes; petiole: proximals to distals 1–4 mm; blade palmately 3-veined, ovate to ovate-lanceolate, 5–16(–20) × 3–11 mm, base truncate to subcordate, margins shallowly, evenly crenulate to serrate-dentate or denticulate, apex acute to obtuse, surfaces: proximals glabrous or sparsely villous, distals and bracteals sparsely hirtellous or glabrous abaxially or along distal margin, sparsely villous adaxially, hairs vitreous, flattened, eglandular. |
Flowers | herkogamous, (1 or)2–7(–14), from distal nodes. |
plesiogamous, (1–)4–7, usually from all nodes, usually beginning about mid stem, cleistogamous. |
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, sparsely red-dotted, bilaterally or nearly radially symmetric, bilabiate or nearly regular; tube-throat narrowly cylindric, 4–6 mm, exserted 0.5–1 mm beyond calyx margin; limb barely expanded. |
Fruiting pedicels | 18–35(–40) mm, distals densely, minutely hirtellous, hairs often slightly deflexed. |
deflexed 45–90º at calyx, 6–19 mm, longer than subtending leaves, glabrous or sparsely villous-glandular. |
Fruiting calyces | green, sometimes red-spotted, ovoid, inflated, sagittally compressed, 15–19 mm, distals densely, minutely hirtellous, throat closing, lobe margins (sinuses) villous. |
sometimes purple-dotted, broadly elliptic-ovoid, inflated, sagittally compressed, 10–13 mm, minutely hirtellous, sometimes also sparsely glandular, throat closing, adaxial lobe not distinctly longer than abaxial, not falcate. |
Capsules | included, 8–10 mm. |
included, stipitate, 6–8 mm. |
Anthers | included, glabrous. |
included, glabrous. |
Erythranthe decora |
Erythranthe charlestonensis |
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Phenology | Flowering May–Aug. | Flowering Apr–Jul(–Aug). |
Habitat | River banks, streamsides, dripping banks, moist meadows. | Grassy slopes, damp soils, moist rocks. |
Elevation | 1000–1600 m. (3300–5200 ft.) | (900–)1700–2400(–2800) m. ((3000–)5600–7900(–9200) ft.) |
Distribution |
ID; OR; WA; BC
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AZ; NV |
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 charlestonensis is characterized by its annual duration, autogamous reproduction, small stature, commonly purplish color, regularly ovate, short-petiolate leaves with shallowly crenate margins and (distal leaves) sparsely villous or glabrous adaxial surfaces, hirtellous calyces without a prominently longer adaxial lobe, and lack of glandular hairs. It is endemic to the Charleston (Spring) Mountains of Clark County, Nevada, and one locality (Union Pass) in Mohave County, Arizona. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 414. | FNA vol. 17, p. 423. |
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 2012-40: 80. (2012) |
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