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Viola sheltonii
SHELTON'S VIOLET

Higher Taxonomy
Family: ViolaceaeView Description 

Common Name: VIOLET FAMILY
Habit: Annual, perennial herb, [small shrub, tree, vine], from caudices, taproots, rhizomes, or stolons; hairs 0 or simple. Stem: 0 or prostrate to erect. Leaf: basal, cauline, or both, alternate, [opposite], simple to compound, petioled; stipules generally small; blade linear to round, entire to toothed or lobed. Inflorescence: flowers 1 [raceme], axillary or scapose; peduncle bractlets 2, generally alternate. Flower: bisexual, bilateral [radial]; sepals 5, free, basal lobes present [0], generally not prominent; petals 5, free, lowest often largest, base +- elongated into a spur; stamens 5, alternate petals, filaments short, wide, with large in-pointing hairs, lowest 2 anthers with basal nectaries extending into petal spur; ovary superior, chamber 1, placentas parietal, 3, ovules [1] generally many, style 1, often enlarged distally, stigma often oblique or hooked, hairy or not. Fruit: capsule [berry], 3-valved, loculicidal, explosively dehiscent or not. Seed: generally with outgrowth, attractive to ants.
Genera In Family: 23 genera, 830 species: worldwide, generally temperate, tropics (especially higher elevations). Note: Lengths of lowest petal including spur.
eFlora Treatment Author: R. John Little
Scientific Editor: Thomas J. Rosatti.
Genus: ViolaView DescriptionDichotomous Key

Common Name: VIOLET
Leaf: generally deciduous. Flower: sepals +- equal, entire; petals unequal, lowest generally largest, with spur generally < 3 [20] mm, lateral 2 equal, generally spreading, upper 2 equal, erect or reflexed, overlapped or not, lateral 2 generally, others sometimes with beard of variously shaped hairs basally; cleistogamous flowers generally present, petals 0. Fruit: ovoid to oblong, hairy or not. Seed: 8--75.
Species In Genus: +- 500 species: temperate, worldwide, Hawaii, Andes. Etymology: (Latin: classical name) Note: Important orns including Viola odorata, Viola tricolor L. (Johnny-jump-up, wild pansy), Viola ×wittrockiana Gams (garden pansy).

Viola sheltonii Torr.
NATIVE
Habit: Perennial herb 2--10 cm, glabrous to sparsely puberulent. Stem: prostrate to erect, generally several, clustered on a deep or generally shallow, often vertical woody rhizome. Leaf: ternate-compound, wider than long; basal 1--2 per caudex, petiole 8.6--21 cm, blade 2--7 cm, 2--11 cm wide, reniform to semicircular, +- fleshy, leaflets +- obovate, cleft, lobed, or 2--3-divided, segments 2--10 mm wide, oblanceolate, fiddle-shaped, lanceolate to spoon-shaped, generally not ciliate, tips acute to obtuse; cauline petiole 5.5--12 cm, blade 1.2--6.3 cm, 1.2--10.5 cm wide, +- like basal. Inflorescence: axillary; peduncle 5--19 cm. Flower: sepals lanceolate, generally not ciliate; petals deep lemon-yellow, upper 2 dark brown to purple-brown abaxially, lower 3 veined purple-brown, lateral 2 bearded with club-shaped hairs or not, lowest 7--18 mm. Fruit: 6--8 mm, oblong to ovoid, glabrous to puberulent. Seed: 2.5 mm, +- brown, shiny. Chromosomes: 2n=12.
Ecology: Fir, pine, or oak woodland, rich or gravelly soil; Elevation: 484--2500 m. Bioregional Distribution: NW, n&s SNH, SnFrB, SCoR, TR, nw PR, Wrn; Distribution Outside California: to British Columbia, Idaho, Colorado. Flowering Time: Mar--Jul Note: Some populations with cleistogamous flowers only.
Synonyms: Viola sheltonii var. biternata (Greene) A. Nelson
eFlora Treatment Author: R. John Little
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Previous taxon: Viola sempervirens
Next taxon: Viola tomentosa

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botanical illustration including Viola sheltonii

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Citation for this treatment: R. John Little 2016. Viola sheltonii, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=48311, accessed on May 06, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 06, 2016.


Viola sheltonii
click for enlargement
© 2006 Steve Matson
Viola sheltonii
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© 2008 Keir Morse
Viola sheltonii
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© 2008 George W. Hartwell
Viola sheltonii
click for enlargement
© 2008 George W. Hartwell
Viola sheltonii
click for enlargement
© 2006 Steve Matson
Viola sheltonii
click for enlargement
© 2008 Keir Morse

More photos of Viola sheltonii in CalPhotos


Geographic subdivisions for Viola sheltonii:
NW, n&s SNH, SnFrB, SCoR, TR, nw PR, Wrn;
Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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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.