Erythranthe primuloides |
Erythranthe gracilipes |
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primrose monkey-flower |
slender-stalk monkeyflower |
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Habit | Perennials, rhizomatous or stoloniferous, mat-forming, rhizomes or stolons flagelliform. | Annuals, taprooted. |
Stems | erect to ascending, usually simple, 2–10(–20) cm, villous, internodes shortened. |
erect, simple or branched, 5–15 cm, sparsely glandular-puberulent. |
Leaves | all basal or near basal, often rosulate; petiole 0 mm; blade palmately 3-veined, oblanceolate to elliptic-obovate, 7–40 × 4–12 mm, base cuneate to attenuate, margins entire, distally denticulate to dentate, or sharply serrate-dentate, apex acute to obtuse, abaxial surface glabrous, adaxial glabrous or glabrate to sparsely to densely long-villous, eglandular. |
cauline, basal not persistent; petiole 0 mm; blade 1-veined or palmately 3-veined (in broader ones), linear to lanceolate, (3–)7–13 × 1–3 mm, base attenuate, margins entire, sometimes toothed, apex acute to obtuse, surfaces sparsely glandular-puberulent. |
Flowers | herkogamous, 1. |
herkogamous, 1–15, from distal or medial to distal nodes. |
Styles | glabrous. |
glabrous. |
Corollas | yellow to orange-yellow, usually brown-spotted abaxially, base of each abaxial lobe usually with a larger reddish brown spot, bilaterally or nearly radially symmetric, weakly bilabiate or nearly regular, densely hirsute on abaxial side of opening; tube-throat narrowly campanulate, 15–20 mm, exserted beyond calyx margin; lobes broadly obovate-oblong, apex rounded- or truncate-notched, throat open, palate densely villous, abaxial ridges prominent. |
pink to rose lavender, throat deep pink to purple with 2 yellow longitudinal ridges, bilaterally symmetric, strongly bilabiate, 2 adaxial lobes much reduced, smaller than 3 abaxials; tube-throat cylindric, 7–10 mm, exserted beyond calyx margin; limb expanded 5–9 mm, abaxial lobes rounded and shallowly 2-fid, abaxial limb glabrous or sparsely bearded. |
Fruiting pedicels | 30–110(–130) mm, glabrous or sparsely stipitate-glandular near base. |
8–30 mm. |
Fruiting calyces | tubular-campanulate, weakly or not inflated, 6–8 mm, glabrous. |
becoming red to straw colored, campanulate, 4–7 mm, margins distinctly toothed or lobed, sparsely glandular-puberulent, ribs thickened, lobes pronounced, erect, margins ciliate. |
Capsules | included, 6–7 mm. |
included, 4–5 mm. |
Anthers | slightly exserted, margins ciliate, glabrous. |
included, glabrous. |
2n | = 34. |
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Erythranthe primuloides |
Erythranthe gracilipes |
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Phenology | Flowering Jun–Aug. | Flowering Apr–May. |
Habitat | Wet meadows, seeps, streamsides. | Open areas in thin decomposed granite soils, often on edges of large granite boulders. |
Elevation | 600–3400 m. (2000–11200 ft.) | 500–1300 m. (1600–4300 ft.) |
Distribution |
AZ; CA; ID; MT; NM; NV; OR; UT; WA
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CA
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Discussion | Flowers in Erythranthe primuloides and E. linearifolia characteristically appear to be scapose, but the scapes are pedicels arising from axils of greatly foreshortened stems. Occasionally in both species the internodes may lengthen somewhat, and the leaves are not so densely clustered at the base of the stems. In northern Klamath, western Deschutes, and eastern Douglas counties, Oregon, an area within the range of typical populations, Erythranthe primuloides has distinctively large corollas (limbs 10–15 mm wide). Apparent clones of large-flowered and smaller-flowered plants sometimes grow in close proximity or even intermixed, appearing as two different entities. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Erythranthe gracilipes is endemic to the foothills of the central Sierra Nevada in Fresno, Madera, and Mariposa counties and apparently is most abundant after fire. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 389. | FNA vol. 17, p. 385. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus primuloides, M. nevadensis, M. pilosellus, M. primuloides var. minimus, M. primuloides var. pilosellus | Mimulus gracilipes |
Name authority | (Bentham) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 35. (2012) | (B. L. Robinson) N. S. Fraga: Phytoneuron 2012-39: 35. (2012) |
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