Diplacus tricolor |
Diplacus viscidus |
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tricolor monkeyflower |
sticky monkeyflower, viscid monkeyflower |
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Habit | Herbs, annual, acaulescent or caulescent. | Herbs, annual. |
Stems | erect or ascending, 10–140(–170) mm, densely glandular-puberulent. |
erect, (30–)60–370 mm, densely glandular-pubescent with viscid hairs. |
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, relatively even-sized or largest proximally and gradually reduced distally; petiole absent; blade obovate to narrowly elliptic, (4–)8–54(–70) × (2–)3–23 mm, margins entire or serrate, plane, apex obtuse to rounded, surfaces: proximals glabrous abaxially, distals glandular-pubescent. |
Pedicels | 1–3(–5) mm in fruit. |
1–4(–5) mm in fruit. |
Flowers | 1 per node, chasmogamous. |
1 per node, 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. |
lavender to magenta with diffuse dark markings on sides of darker tube-throat and with dark red-purple midveins on lobes extending from throat, lobes not dark at base, floor white or yellow, fading to white at mouth, palate ridges white or yellow fading to white distally, throat ceiling glabrous, tube-throat 10–20 mm, limb 8–20 mm diam., not 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, inflated in fruit, (7–)8–15 mm, villous, hairs eglandular, lobes subequal, apex acute to attenuate, ribs and intercostal areas often reddish. |
Capsules | (2–)3–8(–10) mm, indehiscent. |
7–11 mm. |
Anthers | included, with apical tufts of short, eglandular hairs. |
included, ciliate. |
Stigmas | nearly exserted, lobes subequal. |
included, lobes unequal, abaxial 1.5 times adaxial. |
2n | = 18. |
= 16. |
Diplacus tricolor |
Diplacus viscidus |
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Phenology | Flowering Mar–Jul(–Aug). | Flowering Apr–Jul. |
Habitat | Vernally flooded depressions in grasslands, low spots and ditches in and around agricultural fields. | Chaparral clearings and openings. |
Elevation | 50–1500 m. (200–4900 ft.) | 90–1300 m. (300–4300 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.) |
D. M. Thompson (2005) noted that Diplacus viscidus and D. compactus (as Mimulus viscidus var. compactus) are parapatric and may intergrade in central Mariposa County. The two taxa are distinguished by the presence or absence of dark stripes on the corolla lobe midveins, which are evident even on herbarium specimens. Thompson found that the two remained distinct when grown together in the greenhouse. Diplacus viscidus is known from Amador, Calaveras, Eldorado, Mariposa, Merced, and Tuolumne counties; D. compactus continues south through Fresno, northern Kern, Madera, Mariposa, and Tulare counties. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 447. | FNA vol. 17, p. 432. |
Parent taxa | Phrymaceae > Diplacus | Phrymaceae > Diplacus |
Sibling taxa | ||
Synonyms | Mimulus tricolor | Mimulus viscidus, M. fremontii var. viscidus, M. subsecundus var. viscidus |
Name authority | (Hartweg ex Lindley) G. L. Nesom: Phytoneuron 2012-39: 30. (2012) | (Congdon) G. L. Nesom: Phytoneuron 2012-39: 29. (2012) |
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