Erythranthe patula |
Erythranthe primuloides |
|
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stalk-leaf monkey-flower |
primrose monkey-flower |
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Habit | Annuals, fibrous-rooted or filiform-taprooted. | Perennials, rhizomatous or stoloniferous, mat-forming, rhizomes or stolons flagelliform. |
Stems | erect to ascending, straight or geniculate at nodes, usually simple, (3–)5–15(–24) cm, stipitate-glandular, hairs 0.2–0.5 mm, gland-tipped. |
erect to ascending, usually simple, 2–10(–20) cm, villous, internodes shortened. |
Leaves | cauline, basal not persistent; petiole (5–)8–25 mm; blade palmately 3-veined, deltate or ovate to ovate-lanceolate, 4–12(–17) × 3–10(–14) mm, base rounded to cuneate-truncate, margins usually denticulate, apex acute to obtuse, surfaces stipitate-glandular, hairs 0.2–0.5 mm, gland-tipped. |
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. |
Flowers | herkogamous, 1–10, from proximal to distal nodes. |
herkogamous, 1. |
Styles | glabrous. |
glabrous. |
Corollas | yellow, abaxial limb usually with a few red or brownish dots, radially or bilaterally symmetric, regular or weakly bilabiate; tube-throat funnelform, 7–8 mm, exserted beyond calyx margin; lobes oblong, apex rounded to truncate. |
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. |
Fruiting pedicels | 10–25(–38) mm, stipitate-glandular, hairs 0.2–0.5 mm, gland-tipped. |
30–110(–130) mm, glabrous or sparsely stipitate-glandular near base. |
Fruiting calyces | tubular, weakly or not inflated, 5–6(–7) mm, margins distinctly toothed or lobed, sparsely stipitate-glandular to sparsely hirtellous, lobes pronounced, erect. |
tubular-campanulate, weakly or not inflated, 6–8 mm, glabrous. |
Capsules | included, 4–6 mm. |
included, 6–7 mm. |
Anthers | included, glabrous. |
slightly exserted, margins ciliate, glabrous. |
2n | = 32. |
= 34. |
Erythranthe patula |
Erythranthe primuloides |
|
Phenology | Flowering Apr–May(–Aug). | Flowering Jun–Aug. |
Habitat | Ephemeral seeps, springs, rocky stream banks, moist basalt, fine gravel on bedrock, muddy hillside seeps, crevices. | Wet meadows, seeps, streamsides. |
Elevation | 200–1900(–2900) m. (700–6200(–9500) ft.) | 600–3400 m. (2000–11200 ft.) |
Distribution |
ID; MT; OR; WA; WY; AB; BC
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AZ; CA; ID; MT; NM; NV; OR; UT; WA
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Discussion | Erythranthe patula is distinctive with its long-petiolate leaves with ovate blades and its small, weakly bilabiate to nearly radially symmetric corollas. Vestiture may include only minute, stipitate-glandular hairs or it may be an intergrading mix of stipitate-glandular hairs and minute (0.1–0.2 mm), sharp-pointed, eglandular hairs. Plants may have stipitate-glandular pedicels and calyces but hirtellous, eglandular stems, or they may have stipitate-glandular stems and pedicels but hirtellous calyces. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
Source | FNA vol. 17, p. 397. | FNA vol. 17, p. 389. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus patulus | Mimulus primuloides, M. nevadensis, M. pilosellus, M. primuloides var. minimus, M. primuloides var. pilosellus |
Name authority | (Pennell) G. L. Nesom: Phytoneuron 2012-39: 39. (2012) | (Bentham) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 35. (2012) |
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