Viola odorata
Viola striata
English violet, garden violet, sweet blue violet, sweet violet, violette odorante
cream or cream-white or pale or striped or striped cream violet, creamy violet, striped cream violet, striped white violet, violette strièe
1–4, ascending to erect (often declining during anthesis), glabrous or pubescent, on caudex from fleshy rhizome.
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 and cauline;
basal: 2–6;
stipules lanceolate to narrowly deltate, margins laciniate, apex acute;
petiole 3–6 cm, glabrous or puberulent;
blade ovate to reniform, 2–7 × 1–2.5 cm, base cordate, margins crenate to serrate, ciliate or eciliate, apex obtuse to acute, surfaces glabrous or pubescent;
cauline similar to basal except: stipules lanceolate, margins laciniate;
petiole 3–7 cm;
distal blades ovate to deltate, 1–6 × 1–4 cm, base cordate, apex acuminate to acute.
4–15 cm, puberulent.
5–12 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, margins ciliate or eciliate, auricles 2–3 mm;
petals white or cream on both surfaces, without yellow patch basally, lowest and usually lateral 2 purple-veined, lateral 2 and sometimes all densely bearded, lowest 10–18 mm, spur white, gibbous to elongated, 3–6 mm;
style head bearded; cleistogamous flowers axillary.
sometimes purple-flecked, ovoid, 5–8 mm, puberulent.
ellipsoid, 6–7 mm, glabrous.
brown, 3–4 mm.
beige to bronze, 1.5–3 mm.
= 20.
= 20.
Viola odorata
Viola striata
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.)
Dead, long-persistent stems of Viola striata are often present the following season. In flower, the plants are often mistaken for V. canadensis because the petals are whitish (H. E. Ballard 1992).
Viola striata reportedly hybridizes with V. labradorica (= V. ×eclipes H. E. Ballard), V. rostrata (= V. ×brauniae Grover ex Cooperrider), V. walteri var. appalachiensis (= V. ×wujekii H. E. Ballard), and V. walteri var. walteri (= V. ×cooperrideri H. E. Ballard).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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