Flora of North America species comparison

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Diplacus viscidus

sticky monkeyflower, viscid monkeyflower
Habit Herbs, annual.
Stems

erect, (30–)60–370 mm, densely glandular-pubescent with viscid hairs.
Leaves

usually cauline, relatively even-sized or largest proximally and gradually reduced distally;

petiole absent;

blade obovate to narrowly elliptic, (4–)8–54(–70) × (2–)3–23 mm, margins entire or serrate, plane, apex obtuse to rounded, surfaces: proximals glabrous abaxially, distals glandular-pubescent.
Pedicels

1–4(–5) mm in fruit.
Flowers

1 per node, chasmogamous.
Styles

glandular-puberulent.
Corollas

lavender to magenta with diffuse dark markings on sides of darker tube-throat and with dark red-purple midveins on lobes extending from throat, lobes not dark at base, floor white or yellow, fading to white at mouth, palate ridges white or yellow fading to white distally, throat ceiling glabrous, tube-throat 10–20 mm, limb 8–20 mm diam., not bilabiate.
Calyces

symmetrically attached to pedicels, inflated in fruit, (7–)8–15 mm, villous, hairs eglandular, lobes subequal, apex acute to attenuate, ribs and intercostal areas often reddish.
Capsules

7–11 mm.
Anthers

included, ciliate.
Stigmas

included, lobes unequal, abaxial 1.5 times adaxial.
2n

= 16.

Diplacus viscidus
Phenology Flowering Apr–Jul.
Habitat Chaparral clearings and openings.
Elevation 90–1300 m. (300–4300 ft.)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

D. M. Thompson (2005) noted that Diplacus viscidus and D. compactus (as Mimulus viscidus var. compactus) are parapatric and may intergrade in central Mariposa County. The two taxa are distinguished by the presence or absence of dark stripes on the corolla lobe midveins, which are evident even on herbarium specimens. Thompson found that the two remained distinct when grown together in the greenhouse.

Diplacus viscidus is known from Amador, Calaveras, Eldorado, Mariposa, Merced, and Tuolumne counties; D. compactus continues south through Fresno, northern Kern, Madera, Mariposa, and Tulare counties.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 432.
Parent taxa 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. tricolor, D. vandenbergensis
Synonyms Mimulus viscidus, M. fremontii var. viscidus, M. subsecundus var. viscidus
Name authority (Congdon) G. L. Nesom: Phytoneuron 2012-39: 29. (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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