Flora of North America species comparison

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Diplacus nanus

Diplacus brandegeei

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

Santa Cruz Island monkeyflower, Santa Cruz Island or broadleaf monkeyflower
Habit Herbs, annual. Herbs, annual.
Stems

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

erect, 10–100 mm, glandular-puberulent to glandular-pubescent.
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.

mostly cauline, relatively even-sized;

petiole absent, larger with petiole-like extension;

blade narrowly to broadly ovate to broadly elliptic, (4–)8–39 × (2–)4–23 mm, margins entire or crenate, plane, proximal 1/2 usually ciliate, apex obtuse, surfaces glandular-pubescent.
Pedicels

1–3 mm in fruit.

1.5–4 mm in fruit, not twisting to invert calyx.
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.

pubescent distally.
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.

throat magenta, golden yellow at base, limb magenta, palate ridges golden yellow, purple-speckled, tube-throat 12–19 mm, limb 5–11 mm diam., bilabiate, abaxial lip smaller than adaxial.
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.

distinctly asymmetrically attached to pedicel, inflated in fruit, 8–13 mm, glandular-pubescent, lobes subequal, apex obtuse, ribs green, intercostal areas pale green to whitish.
Capsules

8–12 mm.

(5–)6–11 mm, indehiscent.
Anthers

included or exserted, ciliate.

(distal pair) nearly exserted, glabrous.
Stigmas

exserted, lobes equal.

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

= 16.

Diplacus nanus

Diplacus brandegeei
Phenology Flowering (Apr–)May–Jul. Flowering Mar–Apr(–May).
Habitat Openings in sagebrush, disturbed slopes, granite outcrops. Rocky, brushy slopes.
Elevation (300–)1100–2300(–2900) m. ((1000–)3600–7500(–9500) ft.) 100–300 m. (300–1000 ft.)
Distribution
from FNA
CA; ID; MT; NV; OR; WA; WY
[WildflowerSearch map]
from FNA
CA; Mexico (Baja California)
[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.)

Diplacus brandegeei is known only from Santa Catalina (Los Angeles County), Santa Cruz (Santa Barbara County), and Guadalupe (Baja California) islands. The earliest name for the species, Mimulus latifolius A. Gray, was first transferred to Diplacus as D. latifolius (A. Gray) G. L. Nesom, but that name is a later homonym of D. latifolius Nuttall.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 440. FNA vol. 17, p. 446.
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. 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. 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 brandegeei, M. latifolius
Name authority (Hooker & Arnott) G. L. Nesom: Phytoneuron 2012-39: 29. (2012) (Pennell) G. L. Nesom: Phytoneuron 2012-54: 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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