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Mimulus aurantiacus var. aridus

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
Species: Mimulus aurantiacusView Description 

Habit: Subshrub, shrub, glabrous to hairy. Stem: 10--150 cm; main leaf axils generally with small leaf clusters. Leaf: 10--88 mm; upper surface glabrous, lower generally sticky. Inflorescence: pedicel 3--30 mm. Flower: calyx 17--45 mm, not swollen at base, glabrous to hairy, lobes unequal, 2--11 mm, acute to acuminate; corolla persistent, +- yellow, orange, or red, tube-throat 25--57 mm; placentas parietal. Fruit: 13--25 mm, splitting at upper suture. Chromosomes: 2n=20.
Note: Complex; varieties intergrading, hybridizing. Mimulus aurantiacus subsp. australis Munz, Mimulus aurantiacus subsp. lompocensis (McMinn) Munz are intervarietal hybrids.

Mimulus aurantiacus var. aridus (Abrams) D.M. Thomps.
Leaf: ovate to lanceolate or oblanceolate, dentate to serrate, edges generally rolled under, uniformly green, glabrous. Inflorescence: flower 2 per node; pedicel 3--10 mm. Flower: calyx 23--40 mm, tube glabrous, flared distally; corolla pale yellow, tube-throat 37--52 mm, lobes entire; anthers included or +- exserted.
Ecology: Crevices in granite boulders or outcrops; Elevation: 660--1180 m. Bioregional Distribution: se PR; Distribution Outside California: central Baja California. Flowering Time: Mar--Jun
Synonyms: Mimulus aridus (Abrams) A.L. Grant;
eFlora Treatment Author: David M. Thompson
Reference: Thompson 2005 Syst Bot Monogr 75:1--213
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Citation for this treatment: David M. Thompson 2012, Mimulus aurantiacus var. aridus, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on September 18, 2018.

Citation for the whole project: Jepson Flora Project (eds.) 2018, Jepson eFlora,, accessed on September 18, 2018.

Mimulus aurantiacus var. aridus
click for enlargement
© 1998 Christopher L. Christie
Mimulus aurantiacus var. aridus
click for enlargement
© 1998 Christopher L. Christie

More photos of Mimulus aurantiacus var. aridus in CalPhotos

Geographic subdivisions for Mimulus aurantiacus var. aridus:
se PR;
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.