Flora of North America species comparison

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Diplacus tricolor

Diplacus aurantiacus

tricolor monkeyflower

bush monkeyflower, orange bush monkey-flower, red bush monkeyflower, sticky monkey-flower
Habit Herbs, annual, acaulescent or caulescent. Subshrubs or shrubs.
Stems

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

erect to ascending, 500–1200(–1500) mm, minutely hirtellous-hirsutulous and minutely stipitate-glandular.
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.

usually cauline, relatively even-sized;

petiole absent or indistinct;

blade narrowly oblong to narrowly elliptic-lanceolate proximally to lanceolate to elliptic-lanceolate or elliptic distally, 15–60(–75) × 2–20 mm, margins entire or shallowly serrate, plane or revolute, apex obtuse to rounded, surfaces glabrous or abaxial sparsely to densely hairy, hairs branched, adaxial usually without unbranched hairs.
Pedicels

1–3(–5) mm in fruit.

4–13 mm in fruit.
Flowers

1 per node, chasmogamous.

2(–4) per node, chasmogamous.
Styles

usually glandular-puberulent.

sparsely glandular.
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.

yellow-orange to orange, not spotted or striped, palate ridges yellow to golden yellow or orange, tube-throat 25–30 mm, limb 20–30 mm diam., bilabiate to nearly rotate, lobes oblong, apex of adaxial 2 each shallowly, asymmetrically incised.
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.

not inflated in fruit, 18–30 mm, glabrous or minutely hirtellous and/or minutely stipitate-glandular, tube slightly dilated distally, lobes subequal to unequal, apex acute, ribs green, intercostal areas light green.
Capsules

(2–)3–8(–10) mm, indehiscent.

18–31 mm.
Anthers

included, with apical tufts of short, eglandular hairs.

exserted (at throat), glabrous.
Stigmas

nearly exserted, lobes subequal.

exserted, lobes equal.
2n

= 18.

= 20.

Diplacus tricolor

Diplacus aurantiacus
Phenology Flowering Mar–Jul(–Aug). Flowering Apr–Aug.
Habitat Vernally flooded depressions in grasslands, low spots and ditches in and around agricultural fields. Sand dunes and bluffs, dry hillsides, grassy slopes, road banks, stream banks, basaltic knolls, rocky slopes and outcrops, open pine forests, coastal scrub.
Elevation 50–1500 m. (200–4900 ft.) 0–700(–1000) m. (0–2300(–3300) ft.)
Distribution
from FNA
CA; OR
[WildflowerSearch map]
from FNA
CA; OR
[WildflowerSearch map]
[BONAP county 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 aurantiacus occurs from southwestern Oregon (Curry County) southward to Santa Barbara County, California.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 447. FNA vol. 17, p. 449.
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. 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. tricolor, D. vandenbergensis, D. viscidus
Synonyms Mimulus tricolor Mimulus aurantiacus, D. glutinosus, D. glutinosus var. aurantiacus, M. glutinosus
Name authority (Hartweg ex Lindley) G. L. Nesom: Phytoneuron 2012-39: 30. (2012) (Curtis) Jepson: Man. Fl. Pl. Calif., 919. (1925)
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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