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Mimulus rattanii

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.
Reference: Thompson 2005 Syst Bot Monogr 75:1--213

Mimulus rattanii A. Gray
Habit: Annual 1--18 cm. Leaf: 3--46 mm, narrowly elliptic to obovate, proximal glabrous, distal hairy. Inflorescence: flower 1 per node. Flower: pedicel 1--3 mm; calyx 5--9 mm, widely ribbed, swollen, hairy, lobes +- equal, 0.7--2 mm, obtuse or short-pointed; corolla pink to magenta, persistent, tube-throat 7--10 mm, throat floor +- glabrous, folds yellow at mouth; placentas parietal. Fruit: 7--11 mm. Chromosomes: 2n=16.
Ecology: Sandy, open places, especially around sandstone outcrops or burns, other disturbed areas; Elevation: 90--1220 m. Bioregional Distribution: NCoRI, CW, PR. Flowering Time: Apr--Jul
Synonyms: Mimulus decurtatus A.L. Grant; Mimulus rattanii subsp. decurtatus (A.L. Grant) Pennell; Mimulus rattanii var. decurtatus (A.L. Grant) Pennell; Mimulus rattanii var. rattanii;
eFlora Treatment Author: David M. Thompson
Reference: Thompson 2005 Syst Bot Monogr 75:1--213
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botanical illustration including Mimulus rattanii


Citation for this treatment: David M. Thompson 2012, Mimulus rattanii, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on June 19, 2018.

Citation for the whole project: Jepson Flora Project (eds.) 2018, Jepson eFlora,, accessed on June 19, 2018.

Mimulus rattanii
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© 2014 Aaron Schusteff
Mimulus rattanii
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© 2009 Neal Kramer
Mimulus rattanii
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© 2011 Dylan Neubauer
Mimulus rattanii
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© 2001 Steve Schoenig
Mimulus rattanii
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© 2009 Keir Morse
Mimulus rattanii
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© 2001 Steve Schoenig

More photos of Mimulus rattanii in CalPhotos

Geographic subdivisions for Mimulus rattanii:
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, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time.