Erythranthe primuloides |
Erythranthe eastwoodiae |
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primrose monkey-flower |
crimson monkeyflower, Eastwood's monkey-flower |
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Habit | Perennials, rhizomatous or stoloniferous, mat-forming, rhizomes or stolons flagelliform. | Perennials, stoloniferous, sometimes also rhizomatous. |
Stems | erect to ascending, usually simple, 2–10(–20) cm, villous, internodes shortened. |
scandent to pendent, usually simple, 5–30(–40) cm, villous-glandular to minutely stipitate-glandular, hairs often a mixture of longer and much shorter ones, gland-tipped. |
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; petiole 0 mm; blade palmately 3-veined, flabellate distally to obovate to oblanceolate or elliptic, (5–)13–40(–55) × 8–20(–25) mm, largest near mid stem or distally, thick, base cuneate to rounded, subclasping, margins coarsely serrate on distal 1/2, apex acute, surfaces villous-glandular to minutely stipitate-glandular, hairs often a mixture of longer and much shorter ones, gland-tipped. |
Flowers | herkogamous, 1. |
herkogamous, 2–8, axillary at leafy 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. |
scarlet to orange-red or orange, palate red, not spotted or striped, bilaterally symmetric, strongly bilabiate; tube-throat narrowly funnelform, 20–30 mm, exserted 5–15 mm beyond calyx margin; throat open, palate puberulent. |
Fruiting pedicels | 30–110(–130) mm, glabrous or sparsely stipitate-glandular near base. |
10–30(–40) mm. |
Fruiting calyces | tubular-campanulate, weakly or not inflated, 6–8 mm, glabrous. |
cuneate-cylindric to cylindric, weakly or not inflated, 15–23(–27) mm, glabrous or minutely stipitate-glandular to sparsely glandular-villosulous, lobes triangular-acuminate. |
Capsules | included, 6–7 mm. |
included, 6–10 mm. |
Anthers | slightly exserted, margins ciliate, glabrous. |
exserted, villous, thecae reflexed 45º. |
2n | = 34. |
= 16. |
Erythranthe primuloides |
Erythranthe eastwoodiae |
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Phenology | Flowering Jun–Aug. | Flowering May–Sep(–Nov). |
Habitat | Wet meadows, seeps, streamsides. | Seepages in sandstone overhangs, cave roofs, walls, crevices, and cliff bases, pinyon-juniper woodlands. |
Elevation | 600–3400 m. (2000–11200 ft.) | 900–2000 m. (3000–6600 ft.) |
Distribution |
AZ; CA; ID; MT; NM; NV; OR; UT; WA
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AZ; CO; NM; UT
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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.) |
The range of Erythranthe eastwoodiae appears to be essentially contiguous with that of E. verbenacea in the Grand Canyon region, but there is no evidence of hybridization. Erythranthe eastwoodiae (as Mimulus eastwoodiae) is in the Center for Plant Conservation’s National Collection of Endangered Plants. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 389. | FNA vol. 17, p. 394. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus primuloides, M. nevadensis, M. pilosellus, M. primuloides var. minimus, M. primuloides var. pilosellus | Mimulus eastwoodiae |
Name authority | (Bentham) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 35. (2012) | (Rydberg) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 36. (2012) |
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