Flora of North America species comparison

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Diplacus constrictus

Bigelow mimulus, Bigelow's monkeyflower

dense-fruit monkeyflower

Habit

Herbs, annual, herbage usually drying dark.

Stems

erect, (10–)20–250(–320) mm, nodes 3–6, internodes 1–6 mm, glandular-pubescent to glandular-villous.

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

Leaves

usually cauline, relatively even-sized or reduced distally;

petiole absent, bases of largest leaves often long-tapered to petiole-like extensions;

blade obovate, elliptic, or oblanceolate, (5–)7–35(–50) × (2–)3–18(–26) mm, margins entire, rarely toothed, plane, apex abruptly acuminate, acute-acuminate, or cuspidate to long-tapering or long-acuminate, surfaces glandular-pubescent.

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

1–4(–8) 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.

Corollas

magenta with dark reddish spot on each side of mouth on interior lateral walls of throat, usually with reddish lines extending from throat onto midveins of lobes, throat floor yellow with reddish speckling and variable reddish markings, palate ridges yellow, tube-throat (9–)12–22 mm, limb 12–24 mm diam., 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, inflated in fruit, 6–13(–15) mm, glandular-pubescent, tube strongly plicate, lobes slightly recurved, narrowly triangular, subequal, often slightly indurate, apex acuminate to attenuate, ribs broad, darkened, blackish, thickened, strongly raised, intercostal areas whitish, membranous.

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

(6–)7–13(–15) mm.

(7–)8–12(–13.5) mm.

Anthers

included, glabrous, sometimes ciliate.

included, ciliate.

Stigmas

included, lobes equal.

= 16.

Diplacus bigelovii

Diplacus constrictus

Phenology

Flowering May–Aug.

Habitat

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

Elevation

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

Distribution

AZ; CA; NV; UT

[WildflowerSearch map]

Discussion

Varieties 2 (2 in the flora).

Diplacus bigelovii is distributed in southeastern California from southern Mono County south to Imperial and San Diego counties through southern Nevada into Washington County, Utah, and La Paz and Mohave counties, Arizona. The relatively sharp line dividing the two varieties roughly follows the Inyo-San Bernardino county line, then cuts across Clark County, Nevada, and Mojave County, Arizona.

Diplacus bigelovii can generally be recognized by its relatively large, nearly radially symmetric corollas, included stigmas, and inflated mature calyces with lobes of unequal length and apices acuminate-attenuate. The two varieties have distinctive leaf shapes; D. M. Thompson (2005) reported them as very closely parapatric and exhibiting limited intergradation near their contiguous occurrence.

(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.)

Key

1. Leaf blades: distals gradually narrower than proximals, apices long-tapering or long-acuminate; internodes: proximals usually longer than distals.	var. bigelovii
1. Leaf blades: distals usually relatively broader than proximals, apices abruptly acute-acuminate, sometimes cuspidate; internodes usually subequal.	var. cuspidatus

Source

FNA vol. 17, p. 434.

FNA vol. 17, p. 436.

Parent taxa

Phrymaceae > Diplacus

Sibling taxa

D. angustatus, D. aridus, D. aurantiacus, D. bicolor, 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. 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

Subordinate taxa

D. bigelovii var. bigelovii, D. bigelovii var. cuspidatus

Synonyms

Eunanus bigelovii, Mimulus bigelovii

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

Name authority

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

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

Choose a data source: Flora of North America

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