Erythranthe verbenacea |
Erythranthe percaulis |
|
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crimson monkeyflower, pico Pajaro |
serpentine canyon monkeyflower |
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Habit | Perennials, rhizomatous. | Annuals, fibrous-rooted. |
Stems | erect to decumbent, usually simple, weakly 4-angled, 20–60 cm, ± glandular-villous. |
erect or slightly ascending from base, often purplish, simple or few-branched from basal nodes, 7–28 cm, glabrous. |
Leaves | cauline; petiole 0 mm; blade palmately 3–5-veined, elliptic to obovate, rhombic-ovate, or broadly spatulate, 50–75 × 15–26(–30) mm, base subcordate, subclasping, margins coarsely serrate, sometimes only distally, apex acute to obtuse, surfaces ± glandular-villous. |
basal and cauline; petiole: basal and proximalmost cauline 5–10 mm or cauline 0 mm; blade often spreading at right angles to stem, purple, palmately 3–5-veined, narrowly ovate, rhombic-elliptic, ovate to lanceolate, or elliptic-lanceolate to ovate or oblong-ovate, 7–10 mm, cauline even-sized or slightly smaller distally, 4–10 mm, base truncate to attenuate, margins entire or proximals shallowly sinuate, serrations 2–4, shallow, apex rounded, surfaces glabrous. |
Flowers | herkogamous, 2–12, axillary at leafy medial to distal nodes. |
herkogamous, 8–12, usually on distal 2/3 of stem, not clustered, chasmogamous. |
Styles | glabrous. |
glabrous. |
Corollas | crimson, often yellow-tinged, palate ridges dark red, bilaterally symmetric, strongly bilabiate; tube-throat tubular, 25–35 mm, exserted 13–25 mm beyond calyx margin; abaxial limb spreading, adaxial erect, lobe apex truncate, often emarginate, throat open, palate ridges densely short-villous. |
yellow, throat floor with a few red dots, proximal middle lip base with a larger red splotch, bilaterally symmetric, bilabiate; tube-throat cylindric-funnelform, 4–6 mm, exserted 2–3 mm beyond calyx margin; limb expanded 4–5 mm, palate ridges yellow, densely hairy. |
Fruiting pedicels | 45–90(–150) mm. |
15–35 mm, glabrous. |
Fruiting calyces | campanulate, weakly inflated, 20–28 mm, sparsely glandular-villosulous to stipitate-glandular, lobes triangular to ovate-triangular, apex linear-triangular. |
sharply wing-angled, urceolate to urceolate-campanulate, inflated, sagittally compressed, (4–)5–6 mm, glabrous, throat closing. |
Capsules | included, 15–22 mm. |
included, 3 mm. |
Anthers | exserted, white-villous, thecae reflexed 45º. |
included, glabrous. |
2n | = 16. |
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Erythranthe verbenacea |
Erythranthe percaulis |
|
Phenology | Flowering Jun–Sep. | Flowering May–Jun. |
Habitat | Stream edges and beds, flood plains, around seeps and springs, canyon bottoms, moist cliff crevices and ledges. | Soil pockets, crevices, and boulders on serpentine cliffs, slopes, and roadcuts. |
Elevation | 300–2600 m. (1000–8500 ft.) | 2800 m. (9200 ft.) |
Distribution |
AZ; UT; Mexico (Baja California, Chihuahua, Durango, Sinaloa, Sonora)
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CA |
Discussion | R. K. Vickery (1992) noted that yellow-flowered morphs of Erythranthe verbenacea occur in a population at Vasey’s Paradise in the Grand Canyon (Coconino County), 32 miles downstream from Lees Ferry. Populations of Erythranthe verbenacea in the Oak Creek Canyon area in southern Coconino County, Arizona, have leaves with a narrow, lateral, undulating, purple stripe across the mid lamina. The coloration is retained even in dried specimens. In Utah, Erythranthe verbenacea is known only from the Zion Canyon area. Molecular (P. M. Beardsley et al. 2003) and morphological (G. L. Nesom 2014b) data indicate that Erythranthe verbenacea is sister to E. eastwoodiae. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Erythranthe percaulis was described from only the type collection from Serpentine Canyon of the Feather River in Plumas County, but the type locality has recently been relocated and the population determined to comprise many thousands of individuals (S. Schoenig 2016). Plants are characterized by their completely glabrous vestiture, terete and mostly simple stems, small leaves on relatively widely spaced nodes, small calyces, and small, yellow corollas with herkogamous arrangement of stigma and anthers. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 394. | FNA vol. 17, p. 418. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus verbenaceus, M. cardinalis var. verbenaceus, M. lugens | |
Name authority | (Greene) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 37. (2012) | G. L. Nesom: Phytoneuron 2013-70: 1, figs. 1–5. (2013) |
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