Viola odorata
Viola novae-angliae
English violet, garden violet, sweet blue violet, sweet violet, violette odorante
New England blue violet, New England violet
basal (and from stolons), 5–10, ascending to erect;
stipules lanceolate to linear-lanceolate, margins fimbriate, projections gland-tipped, apex acute;
petiole 2–17 cm, puberulent;
blade unlobed, ovate to orbiculate, 1.5–7 × 1.5–5 cm, base cordate, margins crenate, ciliate, apex obtuse to rounded, surfaces puberulent.
basal, 2–8, ascending to erect;
stipules linear-lanceolate to broadly lanceolate, margins entire, sometimes distally glandular, apex acute;
petiole 5–25 cm, densely pubescent;
blade unlobed, narrowly ovate to narrowly deltate, 3.5–7 × 2–5 cm, base cordate, margins uniformly crenate to serrate, ciliate or eciliate, apex acute, surfaces usually glabrous, rarely pubescent.
4–15 cm, puberulent.
3–25 cm, glabrous or pubescent.
sepals narrow to broadly lanceolate, margins ciliate, auricles 3–4 mm;
petals deep to pale blue-violet, pale blue, or white on both surfaces, usually white basally, lateral 2 sparsely to densely bearded, lowest usually purple-veined, 12–22 mm, spur usually same color as petals, elongated, 5–7 mm;
style head beardless; cleistogamous flowers on prostrate or ascending peduncles.
sepals lanceolate to ovate, margins ciliate or eciliate, auricles 1–2 mm;
petals light to dark blue- or dark purple-violet or reddish purple, lowest and sometimes lateral 2 purple-veined, lateral 2 bearded, lowest bearded or beardless, 15–25 mm, spur same color as petals, gibbous, 2–3 mm;
style head beardless; cleistogamous flowers on prostrate to ascending peduncles.
sometimes purple-flecked, ovoid, 5–8 mm, puberulent.
ellipsoid, 5–12 mm, glabrous.
brown, 3–4 mm.
beige, mottled to bronze, 1.5–2.5 mm.
= 20.
= 54.
Viola odorata
Viola novae-angliae
Viola odorata occurs in small colonies; individual plants are interconnected by stolons.
The flowers of Viola odorata are noted for their fragrance; some plants are more fragrant than others. It is native to Eurasia and assumed to be introduced in North America where it is usually found in areas associated with human habitation, including parks, lawns, and roadsides. A substantial industry revolved around the commercial production of violets in England, France, and the United States from prior to 1895 and into the 1900s (R. E. Coombs 2003). Viola odorata is sometimes found in remote locations not easily explained by anthropogenic influence, for example, Clearwater Mountains, Idaho. It is available through the nursery trade and is cultivated as a garden plant and occasionally reported as an escape. Viola odorata is grown in southern France for essential oils used in perfumes, flavorings, and toiletries, and also for the production of the sweet, violet-colored liqueur called parfait amour (V. H. Heywood 1978).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
L. E. McKinney (1992) considered Viola novae-angliae to be a variety of V. sororia; N. L. Gil-Ad (1997) treated it as a distinct species. H. E. Ballard and S. C. Gawler (1994) also considered V. novae-angliae distinct and suggested it might be a hybrid between V. sagittata and V. sororia. Viola novae-angliae appears to have a close affinity with V. sororia; we recognize them here as separate species.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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