Erythranthe geniculata |
Erythranthe alsinoides |
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bent-stem monkeyflower, Dudley's monkeyflower |
chickweed monkey-flower, wing-stem monkey-flower |
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Habit | Annuals, fibrous-rooted or filiform-taprooted. | Annuals, fibrous-rooted. |
Stems | ascending to decumbent or prostrate, geniculate at nodes, simple or diffusely branched, 5–60 cm, moderately villous, hairs 0.8–2 mm, multicellular, eglandular and also 0.1–0.3 mm, stipitate-glandular. |
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. |
Leaves | basal and cauline, basal usually deciduous by flowering; petiole 2–10(–35) mm; blade pinnately to subpinnately veined, broadly ovate or elliptic-ovate to triangular, 8–35 × 5–30 mm, base cuneate to rounded or subcordate, margins serrate or dentate, teeth 3–10 per side, apex acute to obtuse or rounded, surfaces moderately villous, hairs 0.8–2 mm, multicellular, eglandular, and 0.1–0.3 mm, stipitate-glandular. |
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. |
Flowers | herkogamous, (1–)6–20, from all or medial to distal nodes. |
herkogamous, 1–4(–8), from distal or medial to distal nodes. |
Styles | glabrous. |
glabrous. |
Corollas | yellow, without white patches, throat red-spotted, spots concentrated or becoming coalescent into a somewhat discrete splotch at base of each of 3 abaxial lobes and sometimes 2 adaxial, bilaterally symmetric, ± bilabiate; tube-throat cylindric, 9–12 mm, exserted beyond calyx margin; limb expanded 10–18 mm diam. |
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. |
Fruiting pedicels | 12–26(–55) mm, moderately villous, hairs 0.8–2 mm, multicellular, eglandular and also 0.1–0.3 mm, stipitate-glandular. |
15–32 mm, glandular-puberulent, hairs 0.1–0.2 mm, gland-tipped. |
Fruiting calyces | red-spotted, campanulate-cylindric, weakly inflated, (5–)6–8 mm, margins distinctly toothed or lobed, sparsely to moderately villous-glandular, ribs shallowly wing-angled, lobes pronounced, erect to spreading or spreading-recurving. |
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. |
Capsules | included, 4–6(–7) mm. |
included, (3–)5–7 mm. |
Anthers | included, glabrous. |
included, glabrous. |
2n | = 32. |
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Erythranthe geniculata |
Erythranthe alsinoides |
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Phenology | Flowering (Mar–)Apr–Jul. | Flowering Mar–Jun. |
Habitat | Granite crevices, canyon slopes, talus, crevices in volcanic outcrops, edges of boulders, roadsides, damp sandy soils, sandy water edges, gravelly soils and creek bottoms. | Open, rocky slopes, cliff faces, bluffs, mossy rock crevices, ledges, moist rocks, roadsides, along wet paths and trails. |
Elevation | 200–900(–1200) m. (700–3000(–3900) ft.) | 10–1900 m. (0–6200 ft.) |
Distribution |
CA
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CA; ID; OR; WA; BC
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Discussion | Erythranthe geniculata is known from an apparently disjunct cluster of populations in Butte, Sutter, and Yuba counties and then from Tuolumne and Stanislaus counties south to Kern County. Erythranthe geniculata, compared to E. floribunda, has larger, chasmogamous, and allogamous flowers. The anther pairs of E. geniculata are at different levels, and the stigma is slightly above the adaxial anther pair; in E. floribunda both anther pairs and the stigma are at the same level. Erythranthe arenaria, E. geniculata, and E. norrisii constitute a group of apparently closely related species within sect. Mimulosma endemic along the Sierra Nevada. All have ovate-petiolate leaves (only the basal ones are sometimes ovate in E. arenaria) with pinnate to subpinnate venation. The more widespread E. floribunda, which is part of the above group, also is similar, but all three endemics have larger corollas with the tube exserted at greater length beyond the calyx margin. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
Source | FNA vol. 17, p. 404. | FNA vol. 17, p. 395. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus geniculatus, M. dudleyi, M. floribundus var. geniculatus | Mimulus alsinoides |
Name authority | (Greene) G. L. Nesom: Phytoneuron 2012-39: 38. (2012) | (Douglas ex Bentham) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 37. (2012) |
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