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Mimulus layneae

Higher Taxonomy
Family: PhrymaceaeView Description 

Habit: Annual to shrub. Stem: ×-section generally round. Leaf: opposite, simple, 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: +- 15 genera, 230 species: +- worldwide, many habitats; some cultivated as ornamental (e.g., Mimulus, Mazus). Formerly included in Scrophulariaceae. Note: Family description by David J. Keil.
eFlora Treatment Author: David M. Thompson
Scientific Editor: Douglas H. Goldman, Bruce G. Baldwin.
Genus: MimulusView DescriptionDichotomous Key

Habit: Glabrous to hairy. Stem: generally erect. Leaf: opposite, generally +- sessile, generally toothed or entire, 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 or parietal; stigma lobes generally flat, generally included. Fruit: generally ovoid to fusiform, 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: +- 100 species: North America, Chile, eastern Asia, southern Africa, New Zealand, Australia. Etymology: (Latin: little mime or comic actor, from face-like corolla of some species) Note: Limb width measured between most distant points across corolla face.

Mimulus layneae (Greene) Jeps.
Habit: Annual 2--28 cm, +- hairy. Leaf: 6--25 mm, narrowly elliptic to obovate. Flower: pedicel 1--3 mm; calyx 5--11 mm, dark-ribbed, +- hairy, lobes +- equal, 1--3 mm, acute to acuminate; corolla pink to magenta (+- white), darker central marks on lobes, persistent, tube-throat 13--21 mm, throat near mouth generally white (yellow) with red-purple dots, lips +- equal, lower bent downward; placentas parietal. Fruit: 6--10 mm. Chromosomes: 2n=16.
Ecology: Bare or disturbed areas, generally serpentine or granitic; Elevation: generally 200--2000 m. Bioregional Distribution: NW, CaR, SN, SW, MP. Flowering Time: May--Aug Note: Intermediates with Mimulus nanus (NW, southern SN) have yellow at corolla mouth.
Synonyms: Mimulus brachiatus Pennell; Eunanus layneae Greene
eFlora Treatment Author: David M. Thompson
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botanical illustration including Mimulus layneae


Citation for this treatment: David M. Thompson 2016. Mimulus layneae, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on May 28, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora,, accessed on May 28, 2016.

Mimulus layneae
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© 2013 Aaron Schusteff
Mimulus layneae
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© 2001 Steve Schoenig
Mimulus layneae
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© 2007 Neal Kramer
Mimulus layneae
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© 2016 Aaron Schusteff
Mimulus layneae
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© 2009 Keir Morse
Mimulus layneae
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© 2015 Steve Matson

More photos of Mimulus layneae in CalPhotos

Geographic subdivisions for Mimulus layneae:
NW, CaR, SN, SW, MP.
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.