Erythranthe patula |
Erythranthe purpurea |
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stalk-leaf monkey-flower |
little purple monkeyflower, purple monkeyflower |
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Habit | Annuals, fibrous-rooted or filiform-taprooted. | Annuals, taprooted. |
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, simple or branched from basal nodes, 3–10 cm, minutely puberulent. |
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, basal not persistent; petiole 0 mm; blade palmately 3–5-veined, elliptic to lanceolate, 4–15 × 1–5 mm, base truncate to truncate-cordate, clasping, margins entire, sometimes toothed, apex acute to obtuse, surfaces minutely puberulent. |
Flowers | herkogamous, 1–10, from proximal to distal nodes. |
herkogamous, 1–22, from distal or medial to 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. |
pink to purple, adaxial limb darker than abaxial, abaxial limb with yellow markings, bilaterally symmetric, strongly bilabiate; tube-throat cylindric to funnelform, 7–13 mm, exserted beyond calyx margin; limb expanded 7–10 mm, bilabiate, 3 abaxial lobes notched, 2 adaxial nearly entire, abaxial limb sparsely bearded. |
Fruiting pedicels | 10–25(–38) mm, stipitate-glandular, hairs 0.2–0.5 mm, gland-tipped. |
ascending to often spreading horizontally, 13–57(–70) mm. |
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. |
becoming reddish, campanulate, 3–8 mm, margins distinctly toothed or lobed, minutely puberulent, ribs thickened, lobes pronounced, erect, margins glabrous. |
Capsules | included, 4–6 mm. |
included, 3–8 mm. |
Anthers | included, glabrous. |
included, glabrous. |
2n | = 32. |
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Erythranthe patula |
Erythranthe purpurea |
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Phenology | Flowering Apr–May(–Aug). | Flowering May–Jun. |
Habitat | Ephemeral seeps, springs, rocky stream banks, moist basalt, fine gravel on bedrock, muddy hillside seeps, crevices. | Moist openings along streams, swales, and depressions, pine duff in yellow pine forests, margins of dry meadows. |
Elevation | 200–1900(–2900) m. (700–6200(–9500) ft.) | 1900–2800 m. (6200–9200 ft.) |
Distribution |
ID; MT; OR; WA; WY; AB; BC
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CA; Mexico (Baja California)
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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 purpurea is restricted to the San Bernardino Mountains in San Bernardino County and is disjunct in the Sierra San Pedro Mártir in Baja California, Mexico. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 397. | FNA vol. 17, p. 388. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus patulus | Mimulus purpureus, M. purpureus var. pauxillus |
Name authority | (Pennell) G. L. Nesom: Phytoneuron 2012-39: 39. (2012) | (A. L. Grant) N. S. Fraga: Phytoneuron 2012-39: 35. (2012) |
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