Diplacus tricolor |
Diplacus parviflorus |
|
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tricolor monkeyflower |
island bush monkeyflower |
|
Habit | Herbs, annual, acaulescent or caulescent. | Subshrubs or shrubs. |
Stems | erect or ascending, 10–140(–170) mm, densely glandular-puberulent. |
erect to ascending-erect, 300–1200 mm, glabrous. |
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. |
cauline, relatively even-sized; petiole absent; blade elliptic to broadly elliptic-oblanceolate or elliptic-lanceolate, 15–60 × 4–21 mm, margins entire or serrate, plane or revolute, apex acute to obtuse or rounded, surfaces glabrous. |
Pedicels | 1–3(–5) mm in fruit. |
6–15 mm in fruit. |
Flowers | 1 per node, chasmogamous. |
2 per node, chasmogamous. |
Styles | usually glandular-puberulent. |
minutely glandular. |
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. |
deep red to scarlet, throat sometimes orange, not spotted or striped, palate ridges red to orange-red, tube-throat 27–33 mm, limb 12–16 mm diam., bilabiate, lobes oblong, each truncate-entire to slightly emarginate. |
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. |
not inflated in fruit, 18–25 mm, glabrous, tube slightly dilated distally, lobes unequal, apex acute, ribs green, intercostal areas light green. |
Capsules | (2–)3–8(–10) mm, indehiscent. |
14–21 mm. |
Anthers | included, with apical tufts of short, eglandular hairs. |
exserted, glabrous. |
Stigmas | nearly exserted, lobes subequal. |
exserted, lobes equal. |
2n | = 18. |
= 20. |
Diplacus tricolor |
Diplacus parviflorus |
|
Phenology | Flowering Mar–Jul(–Aug). | Flowering Mar–Aug. |
Habitat | Vernally flooded depressions in grasslands, low spots and ditches in and around agricultural fields. | Hillsides, canyons, rocky slopes and walls, bluffs, sea cliffs. |
Elevation | 50–1500 m. (200–4900 ft.) | 10–400 m. (0–1300 ft.) |
Distribution |
CA; OR
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CA
|
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 parviflorus is known from four of the Channel Islands (Anacapa, San Clemente, Santa Cruz, and Santa Rosa). Hybrids with Diplacus longiflorus occur on Santa Cruz Island; A. L. Grant (according to label data of collections) found these to be fairly common on open hillsides near Friar’s Harbor and Valdez, where the two species grew near each other though apparently separated in habitat, with typical D. parviflorus mostly in the canyons and D. longiflorus on open hillsides. She noted that the apparent hybrids were variable in all possible combinations of features of the leaves, calyces, and corollas, including color. Mimulus parviflorus (Greene) A. L. Grant 1925, not Lindley 1825, pertains here. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 447. | FNA vol. 17, p. 452. |
Parent taxa | Phrymaceae > Diplacus | Phrymaceae > Diplacus |
Sibling taxa | ||
Synonyms | Mimulus tricolor | Mimulus aurantiacus var. parviflorus, M. flemingii |
Name authority | (Hartweg ex Lindley) G. L. Nesom: Phytoneuron 2012-39: 30. (2012) | Greene: Pittonia 1: 36. (1887) |
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