Erythranthe rubella |
Erythranthe inconspicua |
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little redstem monkeyflower, red stem himulus, redstem monkeyflower, redstem or little redstem monkeyflower |
small-flower monkeyflower |
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Habit | Annuals, taprooted. | Annuals, fibrous-rooted. |
Stems | erect, simple, sometimes branched from basal nodes, 3–32 cm, minutely puberulent. |
erect to ascending, simple or branched from base, 4-angled, 3–16 cm, glabrous. |
Leaves | cauline, basal not persistent; petiole 0 mm; blade palmately 3-veined (in broader ones), linear to elliptic, 5–22(–30) × 1–5 mm, base narrowed, margins entire, sometimes toothed, apex acute to obtuse, surfaces minutely puberulent. |
basal and cauline; petiole: proximals 1–5 mm, mid cauline and distals 0 mm; blade palmately 3-veined, broadly elliptic to ovate or broadly ovate, 6–20 × 6–12 mm, base rounded to cordate, margins subentire to denticulate, apex obtuse to acute or acuminate, surfaces sparsely villous. |
Flowers | herkogamous, sometimes plesiogamous, 1–106, from distal or medial to distal nodes. |
plesiogamous, 1–12, from proximal to distal nodes. |
Styles | glabrous. |
glabrous. |
Corollas | yellow and abaxial limb and throat red dotted or pink to purple and throat yellow, bilaterally symmetric, weakly bilabiate; tube-throat cylindric, 4–10 mm, exserted beyond calyx margin; limb expanded 3–5 mm, lobes entire or weakly notched, abaxial limb glabrous. |
pale pink to rose pink or purple to magenta, throat sometimes yellow, lobes sometimes yellowish with pale rose spots, bilaterally symmetric, weakly bilabiate; tube-throat cylindric, 5–9 mm, exserted beyond calyx margin; limb expanded 5–6 mm. |
Fruiting pedicels | 2–18 mm. |
5–15 mm, glabrous. |
Fruiting calyces | becoming red-angled or red, campanulate to nearly cylindric, 4–9 mm, margins distinctly toothed or lobed, glabrous or minutely puberulent, ribs thickened, lobes pronounced, erect, margins ciliate. |
campanulate, 6–9 mm, margins subtruncate, glabrous, lobes reduced, subequal. |
Capsules | included, 3–8 mm. |
included, 4–9 mm. |
Anthers | included, glabrous. |
included, minutely villous-hirsute. |
Erythranthe rubella |
Erythranthe inconspicua |
|
Phenology | Flowering Apr–Jun. | Flowering Apr–Jun(–Jul). |
Habitat | Open slopes and washes. | Steep, north- or northwest-facing slopes, canyon walls, moist talus, granitic sand on outcrops, moist gravelly open spots, sandy lakeshores, hillside streams or seeps, riparian woodlands, grassy slopes, gray pine, yellow pine, yellow pine-Kellogg oak, chaparral, Pseudotsuga-Pinus-Cornus, canyon live oak woodlands. |
Elevation | 300–3000 m. [1000–9800 ft.] | 200–2100 m. [700–6900 ft.] |
Distribution |
AZ; CA; CO; NM; NV; TX; UT; WY; Mexico (Baja California, Sonora)
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CA
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Discussion | Erythranthe inconspicua occurs in Sierran counties from Kern north to El Dorado and then is apparently disjunct further northward to Butte County. A record from Los Angeles County (Bigelow s.n., 14 May 1854, the type of the species) is probably mislabeled, as other collections by Bigelow on the same day are from Calaveras County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 17, p. 384. | FNA vol. 17, p. 382. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Mimulus rubellus, M. gratioloides | Mimulus inconspicuus |
Name authority | (A. Gray) N. S. Fraga: Phytoneuron 2012-39: 35. (2012) | (A. Gray) G. L. Nesom: Phytoneuron 2012-39: 34. (2012) |
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