Flora of North America species comparison

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Diplacus johnstonii

Diplacus fremontii

Johnston's monkeyflower

Fremont's monkeyflower, Frémont's monkeyflower
Habit Herbs, annual. Herbs, annual.
Stems

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

erect, 10–200(–240) mm, glandular-puberulent or glandular-pubescent.
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 and cauline, basal in rosette, cauline reduced distally;

petiole absent;

blade narrowly elliptic, sometimes obovate to oblanceolate, 2–30(–55) × 1–10(–16) mm, margins entire, sometimes crenate to serrate, plane, apex rounded to acute, surfaces: proximals glabrous, distals glandular-puberulent or glandular-pubescent.
Pedicels

1–4(–5) mm in fruit.

1–4(–7 on proximal) 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.

minutely 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.

magenta to dark reddish purple, throat often darker near mouth, palate ridges yellow at mouth, throat floor glabrous or minutely puberulent, tube-throat 9–23 mm, limb 8–26 mm diam., not bilabiate.
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.

symmetrically attached to pedicels, inflated in fruit, 5–14 mm, glandular-puberulent to glandular-pubescent or ribs almost tomentose and viscid, lobes subequal, apex rounded and apiculate or acute, intercostal areas white.
Capsules

7–12 mm.

6.5–13(–14) mm.
Anthers

included, glabrous.

included, glabrous, rarely minutely puberulent.
Stigmas

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

included, lobes subequal.
2n

= 16.

= 16.

Diplacus johnstonii

Diplacus fremontii
Phenology Flowering May–Aug. Flowering Mar–Jun.
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. Soft, sandy soils along washes, flood plains, areas of water runoff, sandy hilltops and flats.
Elevation (1000–)1300–2900 m. ((3300–)4300–9500 ft.) 100–2100 m. (300–6900 ft.)
Distribution
from FNA
CA
[WildflowerSearch map]
from FNA
CA; Mexico (Baja California)
[WildflowerSearch map]
[BONAP county 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 fremontii occurs from Monterey and San Benito counties south to San Diego County, east to Kern County and adjacent Inyo County, and in Baja California.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 433. FNA vol. 17, p. 431.
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. 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 johnstonii Eunanus fremontii, Mimulus fremontii, M. subsecundus
Name authority (A. L. Grant) G. L. Nesom: Phytoneuron 2012-39: 29. (2012) (Bentham) 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).



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