Diplacus constrictus

(A. L. Grant) G. L. Nesom
Phytoneuron 2012-39: 28. 2012.
Common names: Dense-fruited monkeyflower
Basionym: Mimulus subsecundus subsp. constrictus A. L. Grant Ann. Missouri Bot. Gard. 11: 287. 1925
Synonyms: M. constrictus (A. L. Grant) Pennell M. viscidus subsp. constrictus (A. L. Grant) Munz
Treatment appears in FNA Volume 17. Treatment on page 436. Mentioned on page 431, 433, 437.

Herbs, annual, herbage usually drying dark. Stems erect, (10–)20–240(–350) mm, nodes 3–6, internodes 1–6 mm, glandular-villous. Leaves basal and cauline, relatively even-sized; petiole indistinct; blade obovate, oblanceolate, or narrowly elliptic, (3.5–)5–32(–47) × 3–15(–18) mm, margins entire or toothed, plane, apex acute or rounded, surfaces: proximals glabrous, distals glandular-pubescent. Pedicels 0.5–3(–4) mm in fruit. Flowers 2 per node, or 1 or 2 per node on 1 plant, chasmogamous. Calyces symmetrically attached to pedicels, inflated in fruit, (5–)7–12(–15) mm, glandular-pubescent to glandular-villous, tube strongly plicate, lobes triangular, subequal, apex acute, ribs broad, darkened, blackish, thickened, strongly raised, intercostal areas whitish, membranous. Corollas magenta or pinkish to red-purple, throat floor whitish with dark lines or streaks, often yellowish deep inside throat, never at mouth, palate ridges white, tube-throat (10–)13–22(–25) mm, limb 14–23 mm diam., not bilabiate. Anthers included, ciliate. Styles glandular-puberulent. Stigmas included, lobes equal. Capsules (7–)8–12(–13.5) mm. 2n = 16.

Phenology: Flowering May–Aug.
Habitat: Disturbed areas with concentrated runoff from rains on, or just above, verges of roadside banks.
Elevation: 800–2100(–2400) m.


Diplacus constrictus is endemic to Kern, Los Angeles, Tulare, and Ventura counties.

Selected References


Lower Taxa


... more about "Diplacus constrictus"
Guy L. Nesom +  and Melissa C. Tulig +
(A. L. Grant) G. L. Nesom +
Mimulus subsecundus subsp. constrictus +
Dense-fruited monkeyflower +
800–2100(–2400) m. +
Disturbed areas with concentrated runoff from rains on, or just above, verges of roadside banks. +
Flowering May–Aug. +
Phytoneuron +
M. constrictus +  and M. viscidus subsp. constrictus +
Diplacus constrictus +
Diplacus +
species +