Erythranthe alsinoides |
Erythranthe arenicola |
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chickweed monkey-flower, wing-stem monkey-flower |
beach monkeyflower |
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Habit | Annuals, fibrous-rooted. | Annuals, fibrous-rooted or slender-taprooted, rarely rooting at nodes. |
Stems | erect, usually simple, (0.5–)2–6(–15) cm, glandular-puberulent, hairs 0.1–0.2 mm, gland-tipped, nodes 2(or 3), usually red-tinged. |
erect, rarely prostrate to prostrate-ascending, few-branched, 3–17 cm, moderately villous-glandular, hairs gland-tipped, or mixed hirtellous and stipitate-glandular. |
Leaves | basal and cauline; petiole 1–20(–30) mm, distinctly 3-veined (winged); blade palmately 3-veined, lanceolate-ovate to ovate, elliptic, or suborbicular, 3–18(–32) × 3–12(–25) mm, base cuneate to truncate, margins dentate to denticulate or subentire, apex acute to obtuse or rounded, surfaces glandular-puberulent, hairs 0.1–0.2 mm, gland-tipped. |
basal and cauline; petiole: basal 2–8 mm or mid and distals absent; blade palmately 3–5-veined, suborbicular to broadly ovate or depressed-ovate, 5–17 × 6–15 mm, base truncate or truncate-cuneate to subcordate, margins subentire or crenulate, apex rounded to obtuse, surfaces moderately villous-glandular, hairs gland-tipped, or mixed hirtellous and stipitate-glandular. |
Flowers | herkogamous, 1–4(–8), from distal or medial to distal nodes. |
herkogamous, 1–6, at distal nodes, chasmogamous. |
Styles | glabrous. |
hirtellous. |
Corollas | yellow, abaxial limb with a large maroon splotch, also red-spotted, bilaterally symmetric, ± bilabiate; tube-throat funnelform-cylindric, 6–9 mm, exserted beyond calyx margin; throat open, palate villous, abaxial ridges low. |
yellow, red-dotted, bilaterally symmetric, bilabiate; tube-throat funnelform, 11–20 mm, exserted 4–8 mm beyond calyx margin; limb expanded 10–18 mm. |
Fruiting pedicels | 15–32 mm, glandular-puberulent, hairs 0.1–0.2 mm, gland-tipped. |
9–17 mm, moderately villous-glandular, hairs gland-tipped, or mixed hirtellous and stipitate-glandular. |
Fruiting calyces | purplish, slightly ridge-angled, campanulate-cylindric, weakly or not inflated, 5–8 mm, margins subtruncate, sparsely minutely stipitate-glandular, lobes 4, (0–)0.5–1 mm, sometimes barely evident, 1 lobe usually slightly longer, margins appearing subtruncate, shallowly convex to rounded-mucronulate. |
nodding, ovoid-campanulate, inflated, sagittally compressed, 9–16 mm, moderately villous-glandular, hairs gland-tipped, or mixed hirtellous and stipitate-glandular, throat closing. |
Capsules | included, (3–)5–7 mm. |
included, 5–12 mm. |
Anthers | included, glabrous. |
included, glabrous. |
Erythranthe alsinoides |
Erythranthe arenicola |
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Phenology | Flowering Mar–Jun. | Flowering Apr–Aug. |
Habitat | Open, rocky slopes, cliff faces, bluffs, mossy rock crevices, ledges, moist rocks, roadsides, along wet paths and trails. | Sandy beaches, especially in moist hollows among dunes, sea cliff bases, chaparral near beaches, mudstone outcrops. |
Elevation | 10–1900 m. (0–6200 ft.) | 0–100 m. (0–300 ft.) |
Distribution |
CA; ID; OR; WA; BC
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CA |
Discussion | Erythranthe alsinoides is distinct in its short, erect stems with few nodes, small, mostly ovate to elliptic-ovate, petiolate leaves, minutely stipitate-glandular vestiture, small corollas with a prominent maroon splotch on the abaxial limb, small, non-inflated mature calyces and, most especially, by its nearly truncate calyx margin. Erythranthe pulsiferae is superficially similar to E. alsinoides but has larger calyces borne on divergent-arcuate pedicels, smaller leaf blades with attenuate to cuneate bases, and the corolla limbs are smaller and lack a prominent maroon splotch. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
F. W. Pennell (1947, 1951) considered Erythranthe arenicola an endemic of Monterey County, but plants from adjacent San Luis Obispo and Santa Cruz counties also belong here. Most of the localities are at seaside, but some are more than a mile inland. Erythranthe arenicola is hypothesized here to be a derivative of E. guttata or E. grandis, retaining the herkogamous breeding system of its putative ancestor but reduced in size and duration. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 395. | FNA vol. 17, p. 412. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus alsinoides | Mimulus guttatus subsp. arenicola |
Name authority | (Douglas ex Bentham) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 37. (2012) | (Pennell) G. L. Nesom: Phytoneuron 2012-39: 43. (2012) |
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