Diplacus johnstonii |
Diplacus tricolor |
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Johnston's monkeyflower |
tricolor monkeyflower |
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Habit | Herbs, annual. | Herbs, annual, acaulescent or caulescent. |
Stems | erect, (10–)30–200(–300) mm, densely glandular-puberulent. |
erect or ascending, 10–140(–170) mm, densely glandular-puberulent. |
Leaves | basal and cauline, gradually reduced distally; petiole absent, bases of larger leaves often with petiole-like extensions; blade obovate or oblanceolate, sometimes elliptic, (4.5–)7–25(–32) × 2–12(–15) mm, margins entire, plane, apex rounded to acute, surfaces densely glandular-puberulent. |
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. |
Pedicels | 1–4(–5) mm in fruit. |
1–3(–5) mm in fruit. |
Flowers | 2 per node, or 1 or 2 per node on 1 plant, chasmogamous. |
1 per node, chasmogamous. |
Styles | densely glandular-puberulent distally. |
usually glandular-puberulent. |
Corollas | magenta, darker and more reddish in throat and, often, along narrow radiating lines extending from throat onto midveins of lobes, throat usually with a large dark spot on each side of mouth on lateral walls, palate ridges and throat floor yellow with reddish spots, tube-throat 9–15 mm, limb 10–15 mm diam., not bilabiate. |
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. |
Calyces | symmetrically attached to pedicels, not inflated in fruit, (6–)7–11 mm, glandular-puberulent, lobes unequal, apex acute to acuminate, ribs inconspicuous, intercostal areas reddish. |
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. |
Capsules | 7–12 mm. |
(2–)3–8(–10) mm, indehiscent. |
Anthers | included, glabrous. |
included, with apical tufts of short, eglandular hairs. |
Stigmas | exserted or at opening of corolla tube-throat, lobes equal. |
nearly exserted, lobes subequal. |
2n | = 16. |
= 18. |
Diplacus johnstonii |
Diplacus tricolor |
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Phenology | Flowering May–Aug. | Flowering Mar–Jul(–Aug). |
Habitat | Steep, unstable scree slides, talus slopes, gravel slides, cracks in granite cliffs, ridges, washes, steep sand and gravel slopes, canyon bottoms, gravelly road banks, recent burns, desert scrub, chaparral, juniper, pinyon-juniper, lodgepole pine, yellow pine, Jeffrey pine, and Jeffrey pine-western white pine-fir woodlands. | Vernally flooded depressions in grasslands, low spots and ditches in and around agricultural fields. |
Elevation | (1000–)1300–2900 m. ((3300–)4300–9500 ft.) | 50–1500 m. (200–4900 ft.) |
Distribution |
CA
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CA; OR
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Discussion | Populations of Diplacus johnstonii occur in Los Angeles, Riverside, San Bernardino, Santa Barbara, and Ventura counties. The populations in northwestern Los Angeles, Santa Barbara, and Ventura counties were noted by D. M. Thompson (2005) to be intermediate between D. constrictus and D. johnstonii. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
Source | FNA vol. 17, p. 433. | FNA vol. 17, p. 447. |
Parent taxa | Phrymaceae > Diplacus | Phrymaceae > Diplacus |
Sibling taxa | ||
Synonyms | Mimulus johnstonii | Mimulus tricolor |
Name authority | (A. L. Grant) G. L. Nesom: Phytoneuron 2012-39: 29. (2012) | (Hartweg ex Lindley) G. L. Nesom: Phytoneuron 2012-39: 30. (2012) |
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