Erythranthe purpurea |
Erythranthe geniculata |
|
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little purple monkeyflower, purple monkeyflower |
bent-stem monkeyflower, Dudley's monkeyflower |
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Habit | Annuals, taprooted. | Annuals, fibrous-rooted or filiform-taprooted. |
Stems | erect, simple or branched from basal nodes, 3–10 cm, minutely puberulent. |
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. |
Leaves | cauline, basal not persistent; petiole 0 mm; blade palmately 3–5-veined, elliptic to lanceolate, 4–15 × 1–5 mm, base truncate to truncate-cordate, clasping, margins entire, sometimes toothed, apex acute to obtuse, surfaces minutely puberulent. |
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. |
Flowers | herkogamous, 1–22, from distal or medial to distal nodes. |
herkogamous, (1–)6–20, from all or medial to distal nodes. |
Styles | glabrous. |
glabrous. |
Corollas | pink to purple, adaxial limb darker than abaxial, abaxial limb with yellow markings, bilaterally symmetric, strongly bilabiate; tube-throat cylindric to funnelform, 7–13 mm, exserted beyond calyx margin; limb expanded 7–10 mm, bilabiate, 3 abaxial lobes notched, 2 adaxial nearly entire, abaxial limb sparsely bearded. |
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. |
Fruiting pedicels | ascending to often spreading horizontally, 13–57(–70) mm. |
12–26(–55) mm, moderately villous, hairs 0.8–2 mm, multicellular, eglandular and also 0.1–0.3 mm, stipitate-glandular. |
Fruiting calyces | becoming reddish, campanulate, 3–8 mm, margins distinctly toothed or lobed, minutely puberulent, ribs thickened, lobes pronounced, erect, margins glabrous. |
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. |
Capsules | included, 3–8 mm. |
included, 4–6(–7) mm. |
Anthers | included, glabrous. |
included, glabrous. |
2n | = 32. |
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Erythranthe purpurea |
Erythranthe geniculata |
|
Phenology | Flowering May–Jun. | Flowering (Mar–)Apr–Jul. |
Habitat | Moist openings along streams, swales, and depressions, pine duff in yellow pine forests, margins of dry meadows. | Granite crevices, canyon slopes, talus, crevices in volcanic outcrops, edges of boulders, roadsides, damp sandy soils, sandy water edges, gravelly soils and creek bottoms. |
Elevation | 1900–2800 m. (6200–9200 ft.) | 200–900(–1200) m. (700–3000(–3900) ft.) |
Distribution |
CA; Mexico (Baja California)
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CA
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Discussion | Erythranthe purpurea is restricted to the San Bernardino Mountains in San Bernardino County and is disjunct in the Sierra San Pedro Mártir in Baja California, Mexico. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
Source | FNA vol. 17, p. 388. | FNA vol. 17, p. 404. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus purpureus, M. purpureus var. pauxillus | Mimulus geniculatus, M. dudleyi, M. floribundus var. geniculatus |
Name authority | (A. L. Grant) N. S. Fraga: Phytoneuron 2012-39: 35. (2012) | (Greene) G. L. Nesom: Phytoneuron 2012-39: 38. (2012) |
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