Viola spp.
Family: Violaceae
Viola image
Max Licher  
PLANT: Caulescent or acaulescent annual or perennial herbs. LEAVES: simple, dissected or compound, basal, cauline or both, stipulate, petiolate, alternate or opposite. INFLORESCENCE: flowers solitary, axillary or scapose. FLOWERS: sepals subequal, auriculate at base; petals unequal, the lower petal shorter or longer than others, the base elongated into a spur or gibbous on underside; lateral 2 petals generally spreading, generally bearded at base; upper 2 petals equal, erect or spreading; lower 2 stamens with nectaries projecting into the spur or sac; cleistogamous flowers present in many spp. FRUITS: ovoid to oblong, glabrous or hairy. SEEDS ca. 15‑20, usually ovoid, with a prominent caruncle. NOTES: Ca. 400 spp.; worldwide. (Latin: Viola, a classical name.) Clausen, J. 1964. MadroƱo 17:173‑197. REFERENCES: Little, R. John. Violaceae. 2001. J. Ariz. - Nev. Acad. Sci. Volume 33(1).
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Image of Viola appalachiensis
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Image of Viola arizonica
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Image of Viola californica
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Image of Viola cascadensis
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Image of Viola demissa
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Image of Viola diffusa
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Image of Viola egglestonii
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Image of Viola emarginata
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Image of Viola esculenta
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Image of Viola flettii
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Image of Viola gomphopetala
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Image of Viola grypoceras
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Image of Viola helleriana
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Image of Viola incognita
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Image of Viola mirabilis
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Image of Viola notabilis
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Image of Viola novae-angliae
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Image of Viola orientalis
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Image of Viola pectinata
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Image of Viola physalodes
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Image of Viola primulaefolia
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Image of Viola raddeana
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Image of Viola sacchalinensis
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Image of Viola scabriuscula
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Image of Viola scandens
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Image of Viola uliginosa
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Image of Viola vittata
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