FNA: Diplacus graniticola vs. Diplacus congdonii

	Diplacus graniticola	Diplacus congdonii
	granite-crack monkeyflower	Congdon's monkeyflower
Habit	Herbs, annual, herbage usually drying dark.	Herbs, annual.
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, 0–100(–120) mm, glandular-puberulent and/or 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, relatively even-sized; petiole absent, larger with petiole-like extension; blade oblanceolate to elliptic, (4–)8–32(–37) × (1.5–)2.5–14(–18) mm, margins entire or crenate, plane, apex obtuse, surfaces glabrous or puberulent and/or pilose adaxially.
Pedicels	1–3 mm in fruit.	(1–)2–5 mm in fruit, usually twisting to invert calyx.
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 or cleistogamous.
Styles	glandular-puberulent.	glandular-pubescent.
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.	throat whitish to dark magenta, not golden yellow at base, lobes magenta, without markings or with dark magenta dots and, sometimes, some yellow at bases of abaxial lobes, palate ridges absent or purple, tube-throat 8–30 mm, limb 3–9 mm diam., bilabiate, abaxial lobe usually smaller than adaxial.
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.	distinctly asymmetrically attached to pedicel, inflated in fruit, 5–14 mm, sparsely pilose, lobes subequal, apex obtuse, ribs green to purplish, intercostal areas whitish.
Capsules	6–10 mm.	4–8.5 mm, indehiscent.
Anthers	included, ciliate.	(distal pair) exserted, glabrous.
Stigmas	included, lobes unequal, abaxial 1.5 times adaxial.	exserted, lobes unequal, abaxial 3–4 times adaxial.
2n	= 16.	= 18.

	Diplacus graniticola	Diplacus congdonii
Phenology	Flowering Apr–Sep.	Flowering Feb–May.
Habitat	Granite cracks and crevices.	Serpentine soils, periphery of granite outcrops, disturbed hillsides, soil from decomposed granite, near water runoff areas, away from seeps or other areas with prolonged surface moisture.
Elevation	300–2100 m. (1000–6900 ft.)	100–1100(–1700) m. (300–3600(–5600) 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 congdonii occurs in the Sierra Nevada Foothills and mountain ranges along the coast. (Discussion copyrighted by Flora of North America; reprinted with permission.)
Source	FNA vol. 17, p. 438.	FNA vol. 17, p. 445.
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. 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 congdonii
Name authority	Schoenig: Phytoneuron 2017-24: 1, figs. 1, 3–10. (2017)	(B. L. Robinson) 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, OR Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Diplacus congdonii

granite-crack monkeyflower

Congdon's monkeyflower

Habit

Herbs, annual, herbage usually drying dark.

Herbs, annual.

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, 0–100(–120) mm, glandular-puberulent and/or 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, relatively even-sized;

petiole absent, larger with petiole-like extension;

blade oblanceolate to elliptic, (4–)8–32(–37) × (1.5–)2.5–14(–18) mm, margins entire or crenate, plane, apex obtuse, surfaces glabrous or puberulent and/or pilose adaxially.

Pedicels

1–3 mm in fruit.

(1–)2–5 mm in fruit, usually twisting to invert calyx.

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 or cleistogamous.

Styles

glandular-puberulent.

glandular-pubescent.

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.

throat whitish to dark magenta, not golden yellow at base, lobes magenta, without markings or with dark magenta dots and, sometimes, some yellow at bases of abaxial lobes, palate ridges absent or purple, tube-throat 8–30 mm, limb 3–9 mm diam., bilabiate, abaxial lobe usually smaller than adaxial.

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.

distinctly asymmetrically attached to pedicel, inflated in fruit, 5–14 mm, sparsely pilose, lobes subequal, apex obtuse, ribs green to purplish, intercostal areas whitish.

Capsules

6–10 mm.

4–8.5 mm, indehiscent.

Anthers

included, ciliate.

(distal pair) exserted, glabrous.

Stigmas

included, lobes unequal, abaxial 1.5 times adaxial.

exserted, lobes unequal, abaxial 3–4 times adaxial.

= 16.

= 18.

Diplacus graniticola

Diplacus congdonii

Phenology

Flowering Apr–Sep.

Flowering Feb–May.

Habitat

Granite cracks and crevices.

Serpentine soils, periphery of granite outcrops, disturbed hillsides, soil from decomposed granite, near water runoff areas, away from seeps or other areas with prolonged surface moisture.

Elevation

300–2100 m. (1000–6900 ft.)

100–1100(–1700) m. (300–3600(–5600) 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 congdonii occurs in the Sierra Nevada Foothills and mountain ranges along the coast.

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

Source

FNA vol. 17, p. 438.

FNA vol. 17, p. 445.

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. 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 congdonii

Name authority

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

(B. L. Robinson) G. L. Nesom: Phytoneuron 2012-39: 32. (2012)

Web links

Local floras: CA, OR
Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria
WildflowerSearch
iNaturalist (observations)
LBJ Wildflower Center
SEINet
Plants of the World Online
Encyclopedia of Life
Wikipedia
Google Image Search

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, OregonFlora

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Flora of North America species comparison

Diplacus graniticola

Diplacus congdonii

Diplacus graniticola

Diplacus congdonii