Erythranthe patula |
Erythranthe nudata |
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stalk-leaf monkey-flower |
bare monkeyflower |
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Habit | Annuals, fibrous-rooted or filiform-taprooted. | Annuals, taprooted or fibrous-rooted. |
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 or ascending, simple or few-branched from basal nodes, branches mostly reddish purple, (5–)9–30 cm, glabrous or minutely stipitate-glandular, hairs 0.05–0.1 mm, at least just above nodes. |
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. |
cauline on wide internodes; petiole 5–30 mm, distals 0 mm; blade 1-veined or palmately 3–5-veined, proximals lanceolate or oblong-lanceolate to ovate, narrowly spatulate, or oblanceolate, distals usually linear, not perfoliate, 5–15(–30) × 1–5 mm, base attenuate, margins denticulate to proximally dentate-lobed, apex acute, surfaces glabrous or minutely stipitate-glandular, hairs 0.05–0.1 mm, at least just above nodes. |
Flowers | herkogamous, 1–10, from proximal to distal nodes. |
herkogamous, (2–)4–8, usually in proximal or medial to distal axils, chasmogamous. |
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, without a large red splotch, throat floor and tube red-spotted, bilaterally symmetric, bilabiate; tube-throat cylindric-funnelform, 8–12 mm, exserted 2–4 mm beyond calyx margin; limb expanded 8–12 mm. |
Fruiting pedicels | 10–25(–38) mm, stipitate-glandular, hairs 0.2–0.5 mm, gland-tipped. |
erect in flower, spreading to divaricate, rarely recurved, in fruit, 10–35 mm, glabrous or minutely stipitate-glandular, hairs 0.05–0.1 mm, at least just above nodes. |
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. |
ovate-campanulate, inflated, sagittally compressed, 6–13 mm, glabrous or minutely stipitate-glandular, hairs 0.05–0.1 mm, at least just above nodes, throat closing, abaxial lobe upcurving over lateral ones, nearly closing orifice. |
Capsules | included, 4–6 mm. |
included, 6–7 mm. |
Anthers | included, glabrous. |
included, glabrous. |
2n | = 32. |
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Erythranthe patula |
Erythranthe nudata |
|
Phenology | Flowering Apr–May(–Aug). | Flowering Apr–Jun. |
Habitat | Ephemeral seeps, springs, rocky stream banks, moist basalt, fine gravel on bedrock, muddy hillside seeps, crevices. | Open gravelly seeps on serpentine outcrops, serpentine crevices, springs, streamsides, gravelly creek beds, roadside drainages and swales. |
Elevation | 200–1900(–2900) m. (700–6200(–9500) ft.) | 200–700 m. (700–2300 ft.) |
Distribution |
ID; MT; OR; WA; WY; AB; BC
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CA
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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.) |
Erythranthe nudata is distinct in its annual duration, few, inconspicuous, and narrow leaves, long and spreading-divaricate pedicels, and large corollas. The plants apparently are restricted to serpentine substrate and known only from Colusa, Glenn, Lake, Mendocino, Napa, and Sonoma counties. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 397. | FNA vol. 17, p. 417. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus patulus | Mimulus nudatus |
Name authority | (Pennell) G. L. Nesom: Phytoneuron 2012-39: 39. (2012) | (Curran ex Greene) G. L. Nesom: Phytoneuron 2012-39: 44. (2012) |
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