Diplacus nanus |
Diplacus parviflorus |
|
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dwarf monkey flower, dwarf purple monkey-flower, purple monkeyflower |
island bush monkeyflower |
|
Habit | Herbs, annual. | Subshrubs or shrubs. |
Stems | erect, 30–120 mm, minutely glandular-puberulent. |
erect to ascending-erect, 300–1200 mm, glabrous. |
Leaves | basal and cauline, relatively even-sized; petiole absent; blade narrowly elliptic to oblanceolate, ovate, obovate, or elliptic-lanceolate, (1–)3–30(–50) × (0.4–)0.7–8(–20) mm, margins entire, plane, apex rounded or obtuse, surfaces minutely 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 mm in fruit. |
6–15 mm in fruit. |
Flowers | 2 per node, or 1 or 2 per node on 1 plant, chasmogamous. |
2 per node, chasmogamous. |
Styles | glandular-puberulent or glandular-pubescent. |
minutely glandular. |
Corollas | magenta to purplish, dark line often extending onto each abaxial lip lobe from throat, palate ridges yellow with red-purple speckling and border, throat floor villous with hairs extending onto abaxial lip, tube 1.1–1.9 mm diam. at filament insertion, tube-throat 11–15 mm, limb 8–14 mm diam., usually, rarely not, bilabiate. |
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 | symmetrically attached to pedicels, not inflated in fruit, 6–9 mm, minutely glandular-puberulent, lobes subequal, apex acute-apiculate, acuminate, or attenuate, ribs dark green or reddish, 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 | 8–12 mm. |
14–21 mm. |
Anthers | included or exserted, ciliate. |
exserted, glabrous. |
Stigmas | exserted, lobes equal. |
exserted, lobes equal. |
2n | = 16. |
= 20. |
Diplacus nanus |
Diplacus parviflorus |
|
Phenology | Flowering (Apr–)May–Jul. | Flowering Mar–Aug. |
Habitat | Openings in sagebrush, disturbed slopes, granite outcrops. | Hillsides, canyons, rocky slopes and walls, bluffs, sea cliffs. |
Elevation | (300–)1100–2300(–2900) m. [(1000–)3600–7500(–9500) ft.] | 10–400 m. [30–1300 ft.] |
Distribution |
CA; ID; MT; NV; OR; WA; WY
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CA
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Discussion | Diplacus nanus is broadly distributed through northern California, southern Idaho, and eastern Oregon, with stations in Ravalli County, Montana, and Park County, Wyoming, and scattered localities in Washington. Diplacus nanus is generally recognized by its strongly bilabiate corollas with purplish (not yellow) tubes and two dark purple patches along the sides of the throats. The glandular-puberulent vestiture of D. nanus contrasts with the glandular-pubescent and viscid-villous vestiture (with hairs much longer) of D. mephiticus. W. L. Ezell (1971) noted that in the Siskiyou Mountains of Josephine County, Oregon, and adjacent Siskiyou and Trinity counties, California, corollas of Diplacus nanus do not have clearly differentiated abaxial and adaxial lips. (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. 440. | FNA vol. 17, p. 452. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Mimulus nanus, M. tolmiei | Mimulus aurantiacus var. parviflorus, M. flemingii |
Name authority | (Hooker & Arnott) G. L. Nesom: Phytoneuron 2012-39: 29. (2012) | Greene: Pittonia 1: 36. (1887) |
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