FNA: Diplacus nanus vs. Diplacus constrictus

	Diplacus nanus	Diplacus constrictus
	dwarf monkey flower, dwarf purple monkey-flower, purple monkeyflower	dense-fruit monkeyflower
Habit	Herbs, annual.	Herbs, annual, herbage usually drying dark.
Stems	erect, 30–120 mm, minutely glandular-puberulent.	erect, (10–)20–240(–350) mm, nodes 3–6, internodes 1–6 mm, glandular-villous.
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 and cauline, relatively even-sized; petiole indistinct; blade obovate, oblanceolate, or narrowly elliptic, (3.5–)5–32(–47) × 3–15(–18) mm, margins entire or toothed, plane, apex acute or rounded, surfaces: proximals glabrous, distals glandular-pubescent.
Pedicels	1–3 mm in fruit.	0.5–3(–4) mm in fruit.
Flowers	2 per node, or 1 or 2 per node on 1 plant, chasmogamous.	2 per node, or 1 or 2 per node on 1 plant, 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.	magenta or pinkish to red-purple, throat floor whitish with dark lines or streaks, often yellowish deep inside throat, never at mouth, palate ridges white, tube-throat (10–)13–22(–25) mm, limb 14–23 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, (5–)7–12(–15) mm, glandular-pubescent to glandular-villous, tube strongly plicate, lobes triangular, subequal, apex acute, ribs broad, darkened, blackish, thickened, strongly raised, intercostal areas whitish, membranous.
Capsules	8–12 mm.	(7–)8–12(–13.5) mm.
Anthers	included or exserted, ciliate.	included, ciliate.
Stigmas	exserted, lobes equal.	included, lobes equal.
2n	= 16.	= 16.

	Diplacus nanus	Diplacus constrictus
Phenology	Flowering (Apr–)May–Jul.	Flowering May–Aug.
Habitat	Openings in sagebrush, disturbed slopes, granite outcrops.	Disturbed areas with concentrated runoff from rains on, or just above, verges of roadside banks.
Elevation	(300–)1100–2300(–2900) m. [(1000–)3600–7500(–9500) ft.]	800–2100(–2400) m. [2600–6900(–7900) ft.]
Distribution	CA; ID; MT; NV; OR; WA; WY [WildflowerSearch map]	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 constrictus is endemic to Kern, Los Angeles, Tulare, and Ventura counties. (Discussion copyrighted by Flora of North America; reprinted with permission.)
Source	FNA vol. 17, p. 440.	FNA vol. 17, p. 436.
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. 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 subsecundus subsp. constrictus, M. constrictus, M. viscidus subsp. constrictus
Name authority	(Hooker & Arnott) G. L. Nesom: Phytoneuron 2012-39: 29. (2012)	(A. L. Grant) G. L. Nesom: Phytoneuron 2012-39: 28. (2012)
Web links	Local floras: CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: CA Local Web sites: CalFlora, CalPhotos WildflowerSearch iNaturalist (observations) LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Diplacus constrictus

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

dense-fruit monkeyflower

Habit

Herbs, annual.

Herbs, annual, herbage usually drying dark.

Stems

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

erect, (10–)20–240(–350) mm, nodes 3–6, internodes 1–6 mm, glandular-villous.

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 and cauline, relatively even-sized;

petiole indistinct;

blade obovate, oblanceolate, or narrowly elliptic, (3.5–)5–32(–47) × 3–15(–18) mm, margins entire or toothed, plane, apex acute or rounded, surfaces: proximals glabrous, distals glandular-pubescent.

Pedicels

1–3 mm in fruit.

0.5–3(–4) mm in fruit.

Flowers

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

magenta or pinkish to red-purple, throat floor whitish with dark lines or streaks, often yellowish deep inside throat, never at mouth, palate ridges white, tube-throat (10–)13–22(–25) mm, limb 14–23 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, (5–)7–12(–15) mm, glandular-pubescent to glandular-villous, tube strongly plicate, lobes triangular, subequal, apex acute, ribs broad, darkened, blackish, thickened, strongly raised, intercostal areas whitish, membranous.

Capsules

8–12 mm.

(7–)8–12(–13.5) mm.

Anthers

included or exserted, ciliate.

included, ciliate.

Stigmas

exserted, lobes equal.

included, lobes equal.

= 16.

Diplacus nanus

Diplacus constrictus

Phenology

Flowering (Apr–)May–Jul.

Flowering May–Aug.

Habitat

Openings in sagebrush, disturbed slopes, granite outcrops.

Disturbed areas with concentrated runoff from rains on, or just above, verges of roadside banks.

Elevation

(300–)1100–2300(–2900) m. [(1000–)3600–7500(–9500) ft.]

800–2100(–2400) m. [2600–6900(–7900) ft.]

Distribution

CA; ID; MT; NV; OR; WA; WY

[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 constrictus is endemic to Kern, Los Angeles, Tulare, and Ventura counties.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source

FNA vol. 17, p. 440.

FNA vol. 17, p. 436.

Parent taxa

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. 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 subsecundus subsp. constrictus, M. constrictus, M. viscidus subsp. constrictus

Name authority

(Hooker & Arnott) G. L. Nesom: Phytoneuron 2012-39: 29. (2012)

(A. L. Grant) G. L. Nesom: Phytoneuron 2012-39: 28. (2012)

Web links

Local floras: CA, OR, WA
Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria
WildflowerSearch
iNaturalist (observations)
LBJ Wildflower Center
SEINet
Plants of the World Online
Encyclopedia of Life
Wikipedia
Google Image Search

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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Flora of North America species comparison

Diplacus nanus

Diplacus constrictus

Diplacus nanus

Diplacus constrictus