FNA: Diplacus graniticola vs. Diplacus torreyi

	Diplacus graniticola	Diplacus torreyi
	granite-crack monkeyflower	Torrey's monkeyflower
Habit	Herbs, annual, herbage usually drying dark.	Herbs, annual, herbage not drying dark.
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, (20–)40–380(–530) mm, glandular-puberulent to glandular-pubescent.
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, gradually reduced distally; petiole poorly delimited; blade elliptic or oblanceolate, (3–)6–40(–48) × (0.5–)1–14(–19) mm, margins entire, plane, apex rounded, surfaces: proximals glabrate, distals glandular-puberulent or glandular-pubescent.
Pedicels	1–3 mm in fruit.	1–3(–6) mm in fruit.
Flowers	2 per node, or 1 or 2 per node on 1 plant, chasmogamous.	2 per node, or 1 or 2 per node on 1 plant, chasmogamous.
Styles	glandular-puberulent.	glandular-puberulent.
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.	tube magenta, limb magenta to pale rose, rarely nearly white, abaxial lip usually paler, palate ridges yellow, tube-throat (8–)9–18(–20) mm, limb 8–20 mm diam., weakly bilabiate.
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.	symmetrically attached to pedicels, not inflated in fruit, (2–)5–10(–12) mm, glandular-puberulent to glandular-pubescent, lobes shallowly triangular to broadly ovate, subequal, apex obtuse, rarely apiculate, ribs purplish.
Capsules	6–10 mm.	(5–)6–11(–13) mm.
Anthers	included, ciliate.	included, sometimes slightly ciliate.
Stigmas	included, lobes unequal, abaxial 1.5 times adaxial.	included, lobes unequal, abaxial 2 times adaxial.
2n	= 16.	= 20.

	Diplacus graniticola	Diplacus torreyi
Phenology	Flowering Apr–Sep.	Flowering May–Aug.
Habitat	Granite cracks and crevices.	Moist sand in channel beds and flood plains, exposed slopes along streams, roadside ditches, serpentine slopes, volcanic outcrop margins, gravelly openings, rocky serpentine soils, ridges in yellow pine and Jeffrey pine forests, openings in yellow pine, lodgepole pine, red fir, and mixed conifer woodlands, chaparral edges, meadows, recent burns, roadsides, road banks.
Elevation	300–2100 m. (1000–6900 ft.)	(100–)700–2000(–2400) m. ((300–)2300–6600(–7900) ft.)
Distribution	CA [WildflowerSearch map]	CA [WildflowerSearch 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 torreyi occurs from Lassen and Shasta counties to Fresno County in the Sierra Nevada and Cascade Range. Diplacus torreyi is recognized by its erect, usually single-stemmed habit (usually with the proximal one or two internodes elongate), obovate to oblanceolate leaf blades, calyces with membranous walls, thin ribs, and shallowly triangular to broadly ovate lobes, and weakly bilabiate corollas with relatively narrower limbs, usually drying a light color with yellow palate ridges. (Discussion copyrighted by Flora of North America; reprinted with permission.)
Source	FNA vol. 17, p. 438.	FNA vol. 17, p. 443.
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. 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. traskiae, D. tricolor, D. vandenbergensis, D. viscidus
Synonyms		Mimulus torreyi
Name authority	Schoenig: Phytoneuron 2017-24: 1, figs. 1, 3–10. (2017)	(A. Gray) G. L. Nesom: Phytoneuron 2012-39: 32. (2012)
Web links	Local floras: CA Local Web sites: CalFlora, CalPhotos WildflowerSearch iNaturalist (observations) LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: CA Local Web sites: CalFlora, CalPhotos WildflowerSearch iNaturalist (observations) LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Diplacus torreyi

granite-crack monkeyflower

Torrey's monkeyflower

Habit

Herbs, annual, herbage usually drying dark.

Herbs, annual, herbage not drying dark.

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, (20–)40–380(–530) mm, glandular-puberulent to glandular-pubescent.

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, gradually reduced distally;

petiole poorly delimited;

blade elliptic or oblanceolate, (3–)6–40(–48) × (0.5–)1–14(–19) mm, margins entire, plane, apex rounded, surfaces: proximals glabrate, distals glandular-puberulent or glandular-pubescent.

Pedicels

1–3 mm in fruit.

1–3(–6) mm in fruit.

Flowers

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

Styles

glandular-puberulent.

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.

tube magenta, limb magenta to pale rose, rarely nearly white, abaxial lip usually paler, palate ridges yellow, tube-throat (8–)9–18(–20) mm, limb 8–20 mm diam., weakly bilabiate.

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.

symmetrically attached to pedicels, not inflated in fruit, (2–)5–10(–12) mm, glandular-puberulent to glandular-pubescent, lobes shallowly triangular to broadly ovate, subequal, apex obtuse, rarely apiculate, ribs purplish.

Capsules

6–10 mm.

(5–)6–11(–13) mm.

Anthers

included, ciliate.

included, sometimes slightly ciliate.

Stigmas

included, lobes unequal, abaxial 1.5 times adaxial.

included, lobes unequal, abaxial 2 times adaxial.

= 16.

= 20.

Diplacus graniticola

Diplacus torreyi

Phenology

Flowering Apr–Sep.

Flowering May–Aug.

Habitat

Granite cracks and crevices.

Moist sand in channel beds and flood plains, exposed slopes along streams, roadside ditches, serpentine slopes, volcanic outcrop margins, gravelly openings, rocky serpentine soils, ridges in yellow pine and Jeffrey pine forests, openings in yellow pine, lodgepole pine, red fir, and mixed conifer woodlands, chaparral edges, meadows, recent burns, roadsides, road banks.

Elevation

300–2100 m. (1000–6900 ft.)

(100–)700–2000(–2400) m. ((300–)2300–6600(–7900) ft.)

Distribution

[WildflowerSearch 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 torreyi occurs from Lassen and Shasta counties to Fresno County in the Sierra Nevada and Cascade Range.

Diplacus torreyi is recognized by its erect, usually single-stemmed habit (usually with the proximal one or two internodes elongate), obovate to oblanceolate leaf blades, calyces with membranous walls, thin ribs, and shallowly triangular to broadly ovate lobes, and weakly bilabiate corollas with relatively narrower limbs, usually drying a light color with yellow palate ridges.

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

Source

FNA vol. 17, p. 438.

FNA vol. 17, p. 443.

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. 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. 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. traskiae, D. tricolor, D. vandenbergensis, D. viscidus

Synonyms

Mimulus torreyi

Name authority

Schoenig: Phytoneuron 2017-24: 1, figs. 1, 3–10. (2017)

(A. Gray) G. L. Nesom: Phytoneuron 2012-39: 32. (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).

Choose a data source: Flora of North America

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Flora of North America species comparison

Diplacus graniticola

Diplacus torreyi

Diplacus graniticola

Diplacus torreyi