Erythranthe patula |
Erythranthe chinatiensis |
|
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stalk-leaf monkey-flower |
Chinati Mountains monkeyflower |
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Habit | Annuals, fibrous-rooted or filiform-taprooted. | Perennials, rhizomatous, sometimes rooting at nodes, mat-forming. |
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. |
procumbent, branched, 5–20 cm, glabrous. |
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; petiole 2–10(–20) mm; blade palmately 3–5(–7)-veined, ovate to broadly ovate or orbicular-ovate, 4–15(–22) × 4–15(–18) mm, base truncate to cuneate, margins shallowly denticulate or merely mucronate to mucronulate, teeth 3–6 per side, apex acute to obtuse, surfaces glabrous, adaxial sometimes moderately villosulous, hairs vitreous, flattened, eglandular or minutely gland-tipped. |
Flowers | herkogamous, 1–10, from proximal to distal nodes. |
plesiogamous, 2–8, axillary at distal nodes. |
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, red-dotted, bilaterally symmetric, bilabiate; tube-throat funnelform, 7–8 mm, exserted beyond calyx margin; limb expanded 6–7 mm, abaxial limb strongly reflexed, lobes fimbriate. |
Fruiting pedicels | 10–25(–38) mm, stipitate-glandular, hairs 0.2–0.5 mm, gland-tipped. |
10–20 mm, glabrous. |
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. |
nodding 45–90º, 5-lobed, ellipsoid, inflated, sagittally compressed, 5–6 mm, glabrous or sparsely villosulous-glandular, throat closing. |
Capsules | included, 4–6 mm. |
included, 4–5 mm. |
Anthers | included, glabrous. |
included, glabrous. |
2n | = 32. |
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Erythranthe patula |
Erythranthe chinatiensis |
|
Phenology | Flowering Apr–May(–Aug). | Flowering Feb–Sep. |
Habitat | Ephemeral seeps, springs, rocky stream banks, moist basalt, fine gravel on bedrock, muddy hillside seeps, crevices. | Seeps in vertical cliff faces, wet bluffs. |
Elevation | 200–1900(–2900) m. (700–6200(–9500) ft.) | 600–1900(–2300) m. (2000–6200(–7500) ft.) |
Distribution |
ID; MT; OR; WA; WY; AB; BC
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TX |
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 chinatiensis is similar to E. parvula in its prostrate habit, five-lobed calyces, and fimbriate corolla lobes. It differs from the latter in its nearly glabrous leaves and strongly reflexed abaxial corolla lip. Erythranthe chinatiensis is known only from Presidio County but should be expected to occur also in adjacent Chihuahua, Mexico. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 397. | FNA vol. 17, p. 424. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus patulus | |
Name authority | (Pennell) G. L. Nesom: Phytoneuron 2012-39: 39. (2012) | G. L. Nesom: Phytoneuron 2012-40: 86, figs. 12–14. (2012) |
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