Flora of North America species comparison

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Diplacus nanus

Diplacus compactus

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

compact monkeyflower, sticky monkeyflower, viscid monkeyflower
Habit Herbs, annual. Herbs, annual.
Stems

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

erect, 20–280 mm, densely glandular-pubescent and viscid.
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.

usually cauline, gradually reduced distally;

petiole absent;

blade obovate to narrowly elliptic, 4–40 × 0.7–20 mm, margins entire or serrate, plane, apex obtuse to rounded, surfaces: proximals glabrous abaxially, distals glandular-pubescent.
Pedicels

1–3 mm in fruit.

1–4(–5) 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.

glabrous or sparsely eglandular-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.

lavender to magenta or red with diffuse dark markings on sides of darker tube-throat, lobes dark at base, without radiating dark lines, floor and palate ridges white or yellow fading distally to white, palate ridges and throat ceiling villous-pilose, tube-throat 10–20 mm, limb 8–20 mm diam., not bilabiate.
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.

symmetrically attached to pedicels, inflated in fruit, 6–10(–12) mm, villous, hairs eglandular, lobes unequal, apex acute to attenuate, ribs and intercostal areas often reddish.
Capsules

8–12 mm.

6–9 mm.
Anthers

included or exserted, ciliate.

included, ciliate.
Stigmas

exserted, lobes equal.

included, lobes unequal, abaxial 3–4 times adaxial.
2n

= 16.

= 16.

Diplacus nanus

Diplacus compactus
Phenology Flowering (Apr–)May–Jul. Flowering May–Jul.
Habitat Openings in sagebrush, disturbed slopes, granite outcrops. Hillsides, washes, recently burned areas, soil and scree banks, granitic sand, chaparral openings, gray pine-blue oak woodlands.
Elevation (300–)1100–2300(–2900) m. ((1000–)3600–7500(–9500) ft.) 300–1000 m. (1000–3300 ft.)
Distribution
from FNA
CA; ID; MT; NV; OR; WA; WY
[WildflowerSearch map]
from FNA
CA
[WildflowerSearch map]
[BONAP county 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.)
Source FNA vol. 17, p. 440. FNA vol. 17, p. 433.
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. 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. pulchellus, 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 Mimulus viscidus var. compactus
Name authority (Hooker & Arnott) G. L. Nesom: Phytoneuron 2012-39: 29. (2012) (D. M. Thompson) G. L. Nesom: Phytoneuron 2012-47: 1. (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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