Erythranthe patula |
Erythranthe utahensis |
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stalk-leaf monkey-flower |
Utah monkeyflower |
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Habit | Annuals, fibrous-rooted or filiform-taprooted. | Perennials, rhizomatous, rooting at nodes, rhizomes filiform. |
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, sometimes decumbent-ascending proximally, simple or few-branched, 20–50 cm, glabrous or sparsely stipitate-glandular in inflorescence. |
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. |
basal and cauline, even-sized or largest near mid stem; petiole 0 mm or proximalmost 2–10 mm; blade palmately 3–5-veined, orbicular or suborbicular to broadly elliptic, broadly ovate, or depressed-ovate, 20–40(–75) × 12–35(–40) mm, base usually truncate to broadly cuneate, margins entire or subentire to mucronulate, shallowly dentate, or denticulate, apex rounded, surfaces glabrous or glabrate to sparsely stipitate-glandular and sparsely pilose, hairs thin-walled, abaxial often glaucous. |
Flowers | herkogamous, 1–10, from proximal to distal nodes. |
herkogamous, 6–16, from proximal to distal nodes, in a loose raceme, distal bracts becoming much reduced. |
Styles | glabrous. |
hirtellous. |
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, abaxial limb prominently darker yellow, sparsely purple-spotted, bilaterally symmetric, weakly bilabiate; tube-throat narrowly funnelform to broadly cylindric, 10–15 mm, exserted 5–8 mm beyond calyx margin; limb expanded 12–20 mm. |
Fruiting pedicels | 10–25(–38) mm, stipitate-glandular, hairs 0.2–0.5 mm, gland-tipped. |
(25–)40–75 mm, stipitate-glandular to short villous, hairs gland-tipped. |
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. |
broadly ovate-cylindric, inflated, sagittally compressed, (10–)11–17(–20) mm, stipitate-glandular or minutely hirtellous or a mixture, hairs sometimes also longer, thin-walled, eglandular or glandular, throat not closing, adaxial lobe slightly longer, triangular-blunt. |
Capsules | included, 4–6 mm. |
included, 5–7 mm. |
Anthers | included, glabrous. |
included, glabrous. |
2n | = 32. |
= 28, 30. |
Erythranthe patula |
Erythranthe utahensis |
|
Phenology | Flowering Apr–May(–Aug). | Flowering (Feb–)May–Aug(–Oct). |
Habitat | Ephemeral seeps, springs, rocky stream banks, moist basalt, fine gravel on bedrock, muddy hillside seeps, crevices. | Drainage ditches, springs, seeps, wet meadows, margins of ponds and small streams, marshy areas. |
Elevation | 200–1900(–2900) m. (700–6200(–9500) ft.) | 1400–2500 m. (4600–8200 ft.) |
Distribution |
ID; MT; OR; WA; WY; AB; BC
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CA; CO; NV; UT |
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 utahensis is characterized by its erect stems, prolifically produced filiform rhizomes, basal leaves short-petiolate to subsessile and cauline sessile, blades suborbicular to broadly ovate or depressed ovate with thin-walled villous-glandular hairs on both surfaces, margins subentire, proximal pedicels elongating to 75 mm, and calyces open at maturity. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 397. | FNA vol. 17, p. 410. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus patulus | Mimulus glabratus subsp. utahensis |
Name authority | (Pennell) G. L. Nesom: Phytoneuron 2012-39: 39. (2012) | (Pennell) G. L. Nesom: Phytoneuron 2012-39: 44. (2012) |
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