Flora of North America species comparison

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Diplacus graniticola

Diplacus aurantiacus

granite-crack monkeyflower

bush monkeyflower, orange bush monkey-flower, red bush monkeyflower, sticky monkey-flower
Habit Herbs, annual, herbage usually drying dark. Subshrubs or shrubs.
Stems

erect, 60–120(–150) mm, nodes 4–15(–20), internodes shorter than leaves, glandular-villous with gland-tipped hairs 1–1.6 mm.

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

usually cauline, relatively even-sized;

petiole weakly delimited;

blade usually lanceolate to ovate-lanceolate, 20–40 × 4–12 mm, margins entire, rarely toothed, plane, apex rounded to obtuse or acute, surfaces: proximals often glabrate abaxially, distals glandular-villous.

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 mm in fruit.

4–13 mm in fruit.
Flowers

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

2(–4) per node, chasmogamous.
Styles

glandular-puberulent.

sparsely glandular.
Corollas

nearly white or pale lavender to pinkish or pale to dark magenta, each lobe with a dark medial line extending nearly to tip, throat with a dark red or purple splotch at junction of each abaxial lobe and adjacent lateral lobe, throat floor sometimes with 2 adjacent white splotches at lateral lobe bases, palate ridges yellow, tube-throat 15–20 mm, limb 10–16 mm diam., bilabiate.

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

symmetrically attached to pedicels, not inflated in fruit, 8–12 mm, glandular-villous, tube strongly plicate, lobes triangular, subequal, apex acute, ribs narrow, darkened, blackish, thickened, strongly raised, intercostal areas green to purple, not membranous.

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

6–10 mm.

18–31 mm.
Anthers

included, ciliate.

exserted (at throat), glabrous.
Stigmas

included, lobes unequal, abaxial 1.5 times adaxial.

exserted, lobes equal.
2n

= 16.

= 20.

Diplacus graniticola

Diplacus aurantiacus
Phenology Flowering Apr–Sep. Flowering Apr–Aug.
Habitat Granite cracks and crevices. Sand dunes and bluffs, dry hillsides, grassy slopes, road banks, stream banks, basaltic knolls, rocky slopes and outcrops, open pine forests, coastal scrub.
Elevation 300–2100 m. (1000–6900 ft.) 0–700(–1000) m. (0–2300(–3300) ft.)
Distribution
from FNA
CA
[WildflowerSearch map]
from FNA
CA; OR
[WildflowerSearch map]
[BONAP county map]
Discussion

Diplacus graniticola occurs in the Sierra Nevada from Tuolumne County to northern Tulare County. These plants previously were identified within D. layneae, with which they are partially sympatric; where these two occur together, D. layneae often grows in granite-derived sand and gravel immediately adjacent to the granite rock habitat of D. graniticola.

(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. 438. 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. 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
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 aurantiacus, D. glutinosus, D. glutinosus var. aurantiacus, M. glutinosus
Name authority Schoenig: Phytoneuron 2017-24: 1, figs. 1, 3–10. (2017) (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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