Flora of North America species comparison

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Diplacus johnstonii

Diplacus pulchellus

Johnston's monkeyflower

pansy or yellow-lip pansy monkeyflower, yellow-lip pansy monkeyflower
Habit Herbs, annual. Herbs, annual, acaulescent or caulescent.
Stems

erect, (10–)30–200(–300) mm, densely glandular-puberulent.

erect, 0 or 30–50(–60) mm, glandular-puberulent.
Leaves

basal and cauline, gradually reduced distally;

petiole absent, bases of larger leaves often with petiole-like extensions;

blade obovate or oblanceolate, sometimes elliptic, (4.5–)7–25(–32) × 2–12(–15) mm, margins entire, plane, apex rounded to acute, surfaces densely glandular-puberulent.

basal densely clustered;

petiole absent;

blade linear, (6–)8–35 × 1–4.5(–9) mm, margins entire, plane, proximal 1/2+ ciliate, apex obtuse, surfaces glabrous.
Pedicels

1–4(–5) mm in fruit.

0–2 mm in fruit.
Flowers

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

1 per node, chasmogamous.
Styles

densely glandular-puberulent distally.

glandular-puberulent.
Corollas

magenta, darker and more reddish in throat and, often, along narrow radiating lines extending from throat onto midveins of lobes, throat usually with a large dark spot on each side of mouth on lateral walls, palate ridges and throat floor yellow with reddish spots, tube-throat 9–15 mm, limb 10–15 mm diam., not bilabiate.

bicolored, adaxial lip lavender to magenta-purple, adaxial throat very dark purple, abaxial lip or at least central lobe golden yellow, abaxial lip base and palate ridges sparsely red-dotted, 2 adaxial lobes and 2 lateral lobes of abaxial lip with dark maroon purple bands at base and extending into and merging within throat, palate ridges yellow, tube-throat (15–)20–40 mm, limb 10–18 mm diam., bilabiate, lips equal.
Calyces

symmetrically attached to pedicels, not inflated in fruit, (6–)7–11 mm, glandular-puberulent, lobes unequal, apex acute to acuminate, ribs inconspicuous, intercostal areas reddish.

slightly asymmetrically attached to pedicel, inflated in fruit, (5–)7–15 mm, pilose, lobes subequal, apex obtuse, ribs reddish purple, intercostal areas pale green to whitish.
Capsules

7–12 mm.

(2–)3–5.5 mm, indehiscent.
Anthers

included, glabrous.

(distal pair) sometimes nearly exserted, with apical tufts of short, eglandular hairs.
Stigmas

exserted or at opening of corolla tube-throat, lobes equal.

usually exserted, lobes subequal.
2n

= 16.

= 18.

Diplacus johnstonii

Diplacus pulchellus
Phenology Flowering May–Aug. Flowering Apr–Jul.
Habitat Steep, unstable scree slides, talus slopes, gravel slides, cracks in granite cliffs, ridges, washes, steep sand and gravel slopes, canyon bottoms, gravelly road banks, recent burns, desert scrub, chaparral, juniper, pinyon-juniper, lodgepole pine, yellow pine, Jeffrey pine, and Jeffrey pine-western white pine-fir woodlands. Vernally flooded depressions or swales, ruts, seepage areas on gentle slopes.
Elevation (1000–)1300–2900 m. ((3300–)4300–9500 ft.) 600–2000 m. (2000–6600 ft.)
Distribution
from FNA
CA
[WildflowerSearch map]
from FNA
CA
[WildflowerSearch map]
Discussion

Populations of Diplacus johnstonii occur in Los Angeles, Riverside, San Bernardino, Santa Barbara, and Ventura counties. The populations in northwestern Los Angeles, Santa Barbara, and Ventura counties were noted by D. M. Thompson (2005) to be intermediate between D. constrictus and D. johnstonii.

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

Diplacus pulchellus is known from Calaveras, Mariposa, and Tuolumne counties.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 433. FNA vol. 17, p. 447.
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. 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. 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. puniceus, D. pygmaeus, D. rattanii, D. rupicola, D. rutilus, D. thompsonii, D. torreyi, D. traskiae, D. tricolor, D. vandenbergensis, D. viscidus
Synonyms Mimulus johnstonii Eunanus pulchellus, Mimulus pulchellus
Name authority (A. L. Grant) G. L. Nesom: Phytoneuron 2012-39: 29. (2012) (Drew ex Greene) 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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