Erythranthe patula |
Erythranthe parvula |
|
---|---|---|
stalk-leaf monkey-flower |
Southwestern mat monkeyflower |
|
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, 5–15 cm, stipitate-glandular distally. |
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 1–4 mm; blade palmately 3-veined, ovate to orbicular-ovate or depressed-ovate, 3–11 × 3–9 mm, base truncate to cuneate, margins shallowly denticulate to dentate, teeth 3–5 per side, apex acute to obtuse, surfaces villous-hirsute, hairs whitish, thickened, flattened, stiff, 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, 6–8 mm, exserted beyond calyx margin; limb expanded 4–6 mm, abaxial limb spreading, lobes fimbriate. |
Fruiting pedicels | 10–25(–38) mm, stipitate-glandular, hairs 0.2–0.5 mm, gland-tipped. |
7–15 mm, minutely stipitate-glandular. |
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, cylindric-ovoid, inflated, sagittally compressed, 4–5 mm, villous-hirsute, throat closing. |
Capsules | included, 4–6 mm. |
included, 3–4 mm. |
Anthers | included, glabrous. |
included, glabrous. |
2n | = 32. |
= 32. |
Erythranthe patula |
Erythranthe parvula |
|
Phenology | Flowering Apr–May(–Aug). | Flowering Apr–Sep. |
Habitat | Ephemeral seeps, springs, rocky stream banks, moist basalt, fine gravel on bedrock, muddy hillside seeps, crevices. | Wet vertical rock faces, ledges, and rocky slopes, seepy wash banks. |
Elevation | 200–1900(–2900) m. (700–6200(–9500) ft.) | 500–2400(–3400) m. (1600–7900(–11200) ft.) |
Distribution |
ID; MT; OR; WA; WY; AB; BC
|
AZ; NM; Mexico (Sonora) |
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.) |
All monkeyflowers with laciniate-lobed corollas have generally been identified as Mimulus dentilobus B. L. Robinson & Fernald, but these occur as three, morphologically distinct, widely allopatric population systems, each of which is regarded as a separate species (G. L. Nesom 2012g). Erythranthe dentiloba (B. L. Robinson & Fernald) G. L. Nesom, which is endemic to Mexico, is the only one of the three with an allogamous breeding system. Erythranthe parvula is restricted to Arizona and New Mexico except for one locality in northern Sonora, Mexico. Erythranthe chinatiensis is the third species of the group. (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 | Mimulus parvulus |
Name authority | (Pennell) G. L. Nesom: Phytoneuron 2012-39: 39. (2012) | (Wooton & Standley) G. L. Nesom: Phytoneuron 2012-39: 44. (2012) |
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