Flora of North America species comparison

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Diplacus nanus

Diplacus pulchellus

dwarf monkey flower, dwarf purple monkey-flower, purple monkeyflower

pansy or yellow-lip pansy monkeyflower, yellow-lip pansy monkeyflower
Habit Herbs, annual. Herbs, annual, acaulescent or caulescent.
Stems

erect, 30–120 mm, minutely glandular-puberulent.

erect, 0 or 30–50(–60) mm, glandular-puberulent.
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.

basal densely clustered;

petiole absent;

blade linear, (6–)8–35 × 1–4.5(–9) mm, margins entire, plane, proximal 1/2+ ciliate, apex obtuse, surfaces glabrous.
Pedicels

1–3 mm in fruit.

0–2 mm in fruit.
Flowers

2 per node, or 1 or 2 per node on 1 plant, chasmogamous.

1 per node, chasmogamous.
Styles

glandular-puberulent or glandular-pubescent.

glandular-puberulent.
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.

bicolored, adaxial lip lavender to magenta-purple, adaxial throat very dark purple, abaxial lip or at least central lobe golden yellow, abaxial lip base and palate ridges sparsely red-dotted, 2 adaxial lobes and 2 lateral lobes of abaxial lip with dark maroon purple bands at base and extending into and merging within throat, palate ridges yellow, tube-throat (15–)20–40 mm, limb 10–18 mm diam., bilabiate, lips equal.
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.

slightly asymmetrically attached to pedicel, inflated in fruit, (5–)7–15 mm, pilose, lobes subequal, apex obtuse, ribs reddish purple, intercostal areas pale green to whitish.
Capsules

8–12 mm.

(2–)3–5.5 mm, indehiscent.
Anthers

included or exserted, ciliate.

(distal pair) sometimes nearly exserted, with apical tufts of short, eglandular hairs.
Stigmas

exserted, lobes equal.

usually exserted, lobes subequal.
2n

= 16.

= 18.

Diplacus nanus

Diplacus pulchellus
Phenology Flowering (Apr–)May–Jul. Flowering Apr–Jul.
Habitat Openings in sagebrush, disturbed slopes, granite outcrops. Vernally flooded depressions or swales, ruts, seepage areas on gentle slopes.
Elevation (300–)1100–2300(–2900) m. [(1000–)3600–7500(–9500) ft.] 600–2000 m. [2000–6600 ft.]
Distribution
from FNA
CA; ID; MT; NV; OR; WA; WY
[WildflowerSearch map]
from FNA
CA
[WildflowerSearch map]
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 pulchellus is known from Calaveras, Mariposa, and Tuolumne counties.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 440. FNA vol. 17, p. 447.
Parent taxa Phrymaceae > Diplacus Phrymaceae > Diplacus
Sibling taxa
D. angustatus, D. aridus, D. aurantiacus, D. bicolor, D. bigelovii, D. bolanderi, D. brandegeei, D. brevipes, D. calycinus, D. cascadensis, D. clevelandii, D. clivicola, D. compactus, D. congdonii, D. constrictus, D. cusickii, D. cusickioides, D. deschutesensis, D. douglasii, D. fremontii, D. grandiflorus, D. graniticola, D. jepsonii, D. johnstonii, D. kelloggii, D. layneae, D. leptaleus, D. linearis, D. longiflorus, D. mephiticus, D. mohavensis, D. ovatus, D. parryi, D. parviflorus, D. pictus, D. pulchellus, D. puniceus, D. pygmaeus, D. rattanii, D. rupicola, D. rutilus, D. thompsonii, D. torreyi, D. traskiae, D. tricolor, D. vandenbergensis, D. viscidus
D. angustatus, D. aridus, D. aurantiacus, D. bicolor, D. bigelovii, D. bolanderi, D. brandegeei, D. brevipes, D. calycinus, D. cascadensis, D. clevelandii, D. clivicola, D. compactus, D. congdonii, D. constrictus, D. cusickii, D. cusickioides, D. deschutesensis, D. douglasii, D. fremontii, D. grandiflorus, D. graniticola, D. jepsonii, D. johnstonii, D. kelloggii, D. layneae, D. leptaleus, D. linearis, D. longiflorus, D. mephiticus, D. mohavensis, D. nanus, D. ovatus, D. parryi, D. parviflorus, D. pictus, D. puniceus, D. pygmaeus, D. rattanii, D. rupicola, D. rutilus, D. thompsonii, D. torreyi, D. traskiae, D. tricolor, D. vandenbergensis, D. viscidus
Synonyms Mimulus nanus, M. tolmiei Eunanus pulchellus, Mimulus pulchellus
Name authority (Hooker & Arnott) G. L. Nesom: Phytoneuron 2012-39: 29. (2012) (Drew ex Greene) G. L. Nesom: Phytoneuron 2012-39: 30. (2012)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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