Flora of North America species comparison

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Diplacus tricolor

Diplacus pygmaeus

tricolor monkeyflower

Egg Lake monkeyflower, pygmy monkeyflower
Habit Herbs, annual, acaulescent or caulescent. Herbs, annual, usually acaulescent.
Stems

erect or ascending, 10–140(–170) mm, densely glandular-puberulent.

erect, 5–12(–20) mm, glandular-puberulent.
Leaves

basal densely clustered;

petiole absent;

blade narrowly elliptic to oblanceolate, (5–)8–45(–60) × (1–)3–12(–20) mm, margins entire, sometimes toothed, plane, not ciliate, apex obtuse, surfaces glandular-puberulent.

basal or basal and cauline, relatively even-sized;

petiole absent;

blade narrowly elliptic to oblanceolate, 2–15 × 0.5–3.5 mm, margins entire or toothed, plane, proximal 1/2 usually ciliate, apex rounded, surfaces glandular-puberulent.
Pedicels

1–3(–5) mm in fruit.

0–1 mm in fruit.
Flowers

1 per node, chasmogamous.

1 per node, usually 1–5 per plant, chasmogamous.
Styles

usually glandular-puberulent.

sparsely glandular-puberulent distally.
Corollas

tricolored, limb and throat magenta to purple, each lobe with a discrete, dark maroon-purple blotch at base, all 3 blotches of abaxial lip round and not usually extending into throat, palate ridges yellow, flanked with white, sometimes purple-spotted, tube-throat (13–)15–50 mm, limb 7–21 mm diam., bilabiate, lobes equal.

throat, limb, and palate ridges yellow, central abaxial lobe and throat floor sparsely red-spotted, tube-throat 5–10 mm, limb 2–5 mm diam., bilabiate.
Calyces

slightly asymmetrically attached to pedicel, not inflated in fruit, (6–)11–23 mm, densely glandular-puberulent, lobes subequal, apex obtuse, ribs often purplish proximally, intercostal areas whitish.

slightly asymmetrically attached to pedicel, inflated in fruit, 3.5–8 mm, glandular-puberulent, lobes subequal, apex rounded, ribs reddish purple, intercostal areas white.
Capsules

(2–)3–8(–10) mm, indehiscent.

2–4 mm, indehiscent.
Anthers

included, with apical tufts of short, eglandular hairs.

included, glabrous.
Stigmas

nearly exserted, lobes subequal.

usually exserted, lobes subequal.
2n

= 18.

= 20.

Diplacus tricolor

Diplacus pygmaeus
Phenology Flowering Mar–Jul(–Aug). Flowering May–Jun.
Habitat Vernally flooded depressions in grasslands, low spots and ditches in and around agricultural fields. Vernally flooded swales, mud flats flanking streams, stream banks, low spots in meadows.
Elevation 50–1500 m. (200–4900 ft.) 1100–1800 m. (3600–5900 ft.)
Distribution
from FNA
CA; OR
[WildflowerSearch map]
from FNA
CA; OR
[WildflowerSearch map]
Discussion

Diplacus tricolor occurs in northwestern and south-central Oregon and from there across a disjunction to central California as far as Kern County.

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

Diplacus pygmaeus occurs in northeastern California and south-central Oregon.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 447. 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. 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. 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. pulchellus, D. puniceus, D. rattanii, D. rupicola, D. rutilus, D. thompsonii, D. torreyi, D. traskiae, D. tricolor, D. vandenbergensis, D. viscidus
Synonyms Mimulus tricolor Mimulus pygmaeus
Name authority (Hartweg ex Lindley) G. L. Nesom: Phytoneuron 2012-39: 30. (2012) (A. L. Grant) 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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