Diplacus tricolor |
Diplacus torreyi |
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tricolor monkeyflower |
Torrey's monkeyflower |
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Habit | Herbs, annual, acaulescent or caulescent. | Herbs, annual, herbage not drying dark. |
Stems | erect or ascending, 10–140(–170) mm, densely glandular-puberulent. |
erect, (20–)40–380(–530) mm, glandular-puberulent to glandular-pubescent. |
Leaves | basal densely clustered; petiole absent; blade narrowly elliptic to oblanceolate, (5–)8–45(–60) × (1–)3–12(–20) mm, margins entire, sometimes toothed, plane, not ciliate, apex obtuse, surfaces glandular-puberulent. |
usually cauline, gradually reduced distally; petiole poorly delimited; blade elliptic or oblanceolate, (3–)6–40(–48) × (0.5–)1–14(–19) mm, margins entire, plane, apex rounded, surfaces: proximals glabrate, distals glandular-puberulent or glandular-pubescent. |
Pedicels | 1–3(–5) mm in fruit. |
1–3(–6) mm in fruit. |
Flowers | 1 per node, chasmogamous. |
2 per node, or 1 or 2 per node on 1 plant, chasmogamous. |
Styles | usually glandular-puberulent. |
glandular-puberulent. |
Corollas | tricolored, limb and throat magenta to purple, each lobe with a discrete, dark maroon-purple blotch at base, all 3 blotches of abaxial lip round and not usually extending into throat, palate ridges yellow, flanked with white, sometimes purple-spotted, tube-throat (13–)15–50 mm, limb 7–21 mm diam., bilabiate, lobes equal. |
tube magenta, limb magenta to pale rose, rarely nearly white, abaxial lip usually paler, palate ridges yellow, tube-throat (8–)9–18(–20) mm, limb 8–20 mm diam., weakly bilabiate. |
Calyces | slightly asymmetrically attached to pedicel, not inflated in fruit, (6–)11–23 mm, densely glandular-puberulent, lobes subequal, apex obtuse, ribs often purplish proximally, intercostal areas whitish. |
symmetrically attached to pedicels, not inflated in fruit, (2–)5–10(–12) mm, glandular-puberulent to glandular-pubescent, lobes shallowly triangular to broadly ovate, subequal, apex obtuse, rarely apiculate, ribs purplish. |
Capsules | (2–)3–8(–10) mm, indehiscent. |
(5–)6–11(–13) mm. |
Anthers | included, with apical tufts of short, eglandular hairs. |
included, sometimes slightly ciliate. |
Stigmas | nearly exserted, lobes subequal. |
included, lobes unequal, abaxial 2 times adaxial. |
2n | = 18. |
= 20. |
Diplacus tricolor |
Diplacus torreyi |
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Phenology | Flowering Mar–Jul(–Aug). | Flowering May–Aug. |
Habitat | Vernally flooded depressions in grasslands, low spots and ditches in and around agricultural fields. | Moist sand in channel beds and flood plains, exposed slopes along streams, roadside ditches, serpentine slopes, volcanic outcrop margins, gravelly openings, rocky serpentine soils, ridges in yellow pine and Jeffrey pine forests, openings in yellow pine, lodgepole pine, red fir, and mixed conifer woodlands, chaparral edges, meadows, recent burns, roadsides, road banks. |
Elevation | 50–1500 m. (200–4900 ft.) | (100–)700–2000(–2400) m. ((300–)2300–6600(–7900) ft.) |
Distribution |
CA; OR
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CA
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Discussion | Diplacus tricolor occurs in northwestern and south-central Oregon and from there across a disjunction to central California as far as Kern County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Diplacus torreyi occurs from Lassen and Shasta counties to Fresno County in the Sierra Nevada and Cascade Range. Diplacus torreyi is recognized by its erect, usually single-stemmed habit (usually with the proximal one or two internodes elongate), obovate to oblanceolate leaf blades, calyces with membranous walls, thin ribs, and shallowly triangular to broadly ovate lobes, and weakly bilabiate corollas with relatively narrower limbs, usually drying a light color with yellow palate ridges. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 447. | FNA vol. 17, p. 443. |
Parent taxa | Phrymaceae > Diplacus | Phrymaceae > Diplacus |
Sibling taxa | ||
Synonyms | Mimulus tricolor | Mimulus torreyi |
Name authority | (Hartweg ex Lindley) G. L. Nesom: Phytoneuron 2012-39: 30. (2012) | (A. Gray) G. L. Nesom: Phytoneuron 2012-39: 32. (2012) |
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