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Vascular Plants of California
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Erythranthe guttata

Higher Taxonomy
Family: PhrymaceaeView DescriptionDichotomous Key
Habit: Annual to shrub. Stem: ×-section generally round. Leaf: opposite, simple, generally entire or toothed; stipules 0. Inflorescence: spike, raceme, or panicle, bracted, or flowers 1--2 in axils. Flower: bisexual; calyx radial or +- bilateral, tube long, generally ribbed, lobes 5; corolla generally bilateral, generally 2-lipped, upper [1]2-lobed, lower 3-lobed; stamens 4 in 2 pairs, epipetalous, included or exserted; pistil 1, ovary superior, chambers 1--2, placentas parietal or axile, style 1, stigma lobes 2, flat, folding together when touched. Fruit: generally capsule, generally ellipsoid, loculicidal [indehiscent, 1-seeded].
Genera In Family: +- 12 genera, 200 species: +- worldwide, many habitats; some cultivated as ornamental (e.g., Diplacus, Erythranthe). Formerly included in Scrophulariaceae. Note: Family description by David J. Keil.
eFlora Treatment Author: Naomi S. Fraga [TJM2 author David M. Thompson]
Scientific Editor: Bruce G. Baldwin.
Genus: ErythrantheView DescriptionDichotomous Key

Habit: Annual or perennial herb, glabrous to hairy. Stem: generally erect. Leaf: generally +- sessile, generally green or +- red. Inflorescence: raceme, bracted, or flowers generally 2 per axil. Flower: occasionally cleistogamous; calyx generally green, lobes 5, generally << tube, generally unequal; corolla generally deciduous, white to red, maroon, purple, gold, or yellow, lower lip base occasionally swollen, +- closing mouth, tube-throat floor generally with 2 longitudinal folds; anther sacs spreading; placentas 2, axile; stigma lobes generally included. Fruit: generally ellipsoid, generally upcurved if elongate, generally +- fragile, loculicidal near tip (hard, indehiscent), chambers 1--2. Seed: many, generally < 1 mm, ovoid, +- yellow to dark brown.
Species In Genus: +- 122 species: North America, Chile, eastern Asia. Etymology: (Greek: red flower) Note: Limb width measured between most distant points across corolla face.
eFlora Treatment Author: Naomi S. Fraga [TJM2 author David M. Thompson]
Reference: Barker et al. 2012 Phytoneuron 2012-39:1--60; Nesom 2017 Phytoneuron 2017-17:1--29
Erythranthe guttata (DC.) G.L. Nesom
Habit: Rhizomed perennial herb, 6--65(--80+) cm, glabrous to hairy. Leaf: abruptly reduced on distal stem; petiole 0--95 mm; blade 4--125 mm, ovate to round, generally crenate, base generally irregularly small-lobed or dissected. Inflorescence: raceme, generally (1--)3--20(--28)-flowered; bracts ovate to cordate, fused at base or not, not glaucous. Flower: open; pedicel 15--40(--60) mm; calyx 11--17(--20) mm, asymmetrically swollen in fruit, glabrous to hairy, lobes unequal, lowest 2 upcurved in fruit; corolla yellow, tube-throat 10--20 mm. Fruit: 7--11 mm. Chromosomes: 2n=28,56.
Ecology: Common. Wet places, generally terrestrial, occasionally emergent or floating in mats; Elevation: < 2500 m. Bioregional Distribution: CA; Distribution Outside California: to Alaska, western Canada, Rocky Mountains, northern Mexico; introduced in northeastern United States, eastern Canada. Flowering Time: Apr--Sep
Synonyms: Mimulus clementinus Greene; Mimulus equinus Greene; Mimulus glabratus Kunth var. adscendens A. Gray; Mimulus grandiflorus Howell; Mimulus guttatus DC.; Mimulus guttatus subsp. haidensis Calder & Roy L. Taylor; Mimulus guttatus var. puberulus (Rydb.) A.L. Grant; Mimulus hirsutus Howell; Mimulus langsdorffii Greene; Mimulus langsdorffii var. argutus Greene; Mimulus langsdorffii var. californicus Jeps.; Mimulus langsdorffii var. guttatus (DC.) Jeps.; Mimulus langsdorffii var. minimus J.K. Henry; Mimulus langsdorffii var. platyphyllus Greene; Mimulus lyratus Benth.; Mimulus paniculatus Greene; Mimulus petiolaris Greene; Mimulus prionophyllus Greene; Mimulus puberulus Rydb.; Mimulus rivularis Nutt.
Jepson eFlora Author: Naomi S. Fraga [TJM2 author David M. Thompson]
Reference: Barker et al. 2012 Phytoneuron 2012-39:1--60; Nesom 2017 Phytoneuron 2017-17:1--29
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

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Citation for this treatment: Naomi S. Fraga 2018, Erythranthe guttata, in Jepson Flora Project (eds.) Jepson eFlora, Revision 6,, accessed on May 23, 2022.

Citation for the whole project: Jepson Flora Project (eds.) 2022, Jepson eFlora,, accessed on May 23, 2022.

Erythranthe guttata
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© 2022 California Academy of Sciences
Erythranthe guttata
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© 2018 Barry Rice
Erythranthe guttata
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© 2009 Barry Rice
Erythranthe guttata
click for enlargement
© 2022 California Academy of Sciences
Erythranthe guttata
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© 2014 Barry Rice
Erythranthe guttata
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© 2010 Barry Rice

More photos of Erythranthe guttata in CalPhotos

Geographic subdivisions for Erythranthe guttata:
1. You can change the display of the base map layer control box in the upper right-hand corner.
2. County and Jepson Region polygons can be turned off and on using the check boxes.
map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).


Data provided by the participants of the  Consortium of California Herbaria.
View all CCH records
All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.

CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time (fruiting time in some monocot genera).