Erythranthe washingtonensis |
Erythranthe hallii |
|
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John Day or Washington monkeyflower, Washington monkey-flower |
Hall's monkeyflower |
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Habit | Annuals, fibrous-rooted or filiform-taprooted. | Annuals, fibrous-rooted, sometimes apparently rooting at proximal nodes if stems proximally decumbent. |
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, 4-angled, 2–8 cm, slender, glabrous. |
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. |
basal and cauline or basal deciduous, largest at mid stem or above, cauline relatively few on long internodes; petiole: basal and proximals to midcauline 1–4 mm, distals 0 mm; blade palmately 3-veined, ovate to ovate-lanceolate, 5–11 × 3–9 mm, base truncate to cuneate, margins very shallowly dentate or denticulate, apex acute to obtuse, surfaces glabrous or distals and bracteals sparsely villous, hairs vitreous, flattened, eglandular, multicellular. |
Flowers | herkogamous, 1–6, from proximal to distal nodes. |
plesiogamous, (1–)4–10, sometimes from all nodes, usually beginning about mid stem, cleistogamous. |
Styles | hispid-hirtellous. |
glabrous. |
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, usually 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 | divergent at nearly right angles, 20–50 mm, densely, minutely stipitate-glandular. |
usually deflexed 90º at calyx, 6–14 mm, longer than subtending leaves. |
Fruiting calyces | greenish, ridge-angled, tubular, weakly inflated, 6–8 mm, margins distinctly toothed or lobed, densely, minutely stipitate-glandular, lobes pronounced, erect. |
sometimes red-dotted, broadly elliptic-ovoid, inflated, sagittally compressed, (5–)7–10 mm, glabrous, throat closing, adaxial lobe not distinctly longer than abaxial, not falcate. |
Capsules | included, 5–8.5 mm. |
included, 4–6 mm. |
Anthers | included, glabrous. |
included, glabrous. |
2n | = 32. |
= 32. |
Erythranthe washingtonensis |
Erythranthe hallii |
|
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. | Ledges, seeps, along streams, wet meadows. |
Elevation | 700–1300 m. (2300–4300 ft.) | 1900–3200 m. (6200–10500 ft.) |
Distribution |
OR
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CO |
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 hallii is known from Boulder, Clear Creek, Fremont, Grand, Jefferson, Larimer, Routt, and Saguache counties. The Colorado population system is morphologically and geographically coherent. Erythranthe hallii is similar to E. arvensis; both have four-angled stems, autogamous reproduction, a tendency to root at basal nodes and distally, and both have bracteal leaves villous with vitreous, flattened, eglandular, multicellular hairs, although this vestiture is barely developed and often absent in E. hallii. The only reported chromosome number from the Colorado plants (2n = 32) also appears to be distinct among possible relatives of E. hallii. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 396. | FNA vol. 17, p. 423. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus washingtonensis | Mimulus hallii, M. guttatus var. hallii |
Name authority | (Gandoger) G. L. Nesom: Phytoneuron 2012-39: 39. (2012) — (as washingtoniensis) | (Greene) G. L. Nesom: Phytoneuron 2012-39: 43. (2012) |
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