Viola odorata |
Viola egglestonii |
|
---|---|---|
English violet, garden violet, sweet blue violet, sweet violet, violette odorante |
cedar glade or glade violet, glade violet |
|
Habit | Plants perennial, acaulescent, stoloniferous, 4–12 cm; stolons green, often rooting at nodes and forming leafy rosettes; rooted rosettes often develop into erect, rhizomatous caudex from which new stolons are produced; rhizome thick, fleshy. | Plants perennial, acaulescent, not stoloniferous, 5–20 cm; rhizome thick, fleshy. |
Leaves | 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, 3, prostrate to ascending; stipules linear-lanceolate, margins entire, apex acute; petiole 1.5–7 cm, usually glabrous; earliest leaf blades ± deltate or 3-lobed, mid-season blades 5–9-lobed, 1–9 × 1–10 cm, base truncate to cuneate, middle lobe lanceolate or spatulate to narrowly ovate, lateral lobes lanceolate or spatulate to falcate, margins serrate, sometimes with deltate or falcate appendages or teeth, ciliate, apex acute, surfaces usually glabrous, rarely pubescent. |
Peduncles | 4–15 cm, puberulent. |
2–15 cm, usually glabrous, rarely pubescent. |
Flowers | 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 0.5–1 mm; petals light to dark blue-violet on both surfaces, lower 3 and sometimes upper 2 white basally, lower 3 darker violet-veined, lateral 2 densely bearded, lowest 10–15 mm, spur usually lilac, gibbous, 2–3 mm; style head beardless; cleistogamous flowers on prostrate peduncles. |
Capsules | sometimes purple-flecked, ovoid, 5–8 mm, puberulent. |
ellipsoid, 11–14 mm, glabrous. |
Seeds | brown, 3–4 mm. |
beige, mottled to bronze, 2–3 mm. |
2n | = 20. |
= 54. |
Viola odorata |
Viola egglestonii |
|
Phenology | Flowering Jan–May. | Flowering Mar–May. |
Habitat | Lawns, roadsides, clearings, riparian habitats, parks, urban areas | Limestone glades and barrens |
Elevation | 0–1700 m (0–5600 ft) | 100–200 m (300–700 ft) |
Distribution |
CA; CT; ID; IL; MA; ME; MI; NC; NY; OH; OR; PA; RI; UT; WA; WI; BC; NS; ON; QC; Eurasia [Introduced in North America; introduced also in Australia]
|
AL; GA; IN; KY; TN |
Discussion | 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.) |
N. H. Russell (1965) was the first to consider Viola egglestonii similar to V. septemloba. After analyzing leaf-blade lobing patterns, L. E. McKinney considered it a subspecies of V. septemloba. Although similarities exist between these taxa, we maintain them as distinct species. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 6, p. 140. | FNA vol. 6, p. 129. |
Parent taxa | Violaceae > Viola | Violaceae > Viola |
Sibling taxa | ||
Synonyms | V. septemloba subsp. egglestonii | |
Name authority | Linnaeus: Sp. Pl. 2: 934. (1753) | Brainerd: Bull. Torrey Bot. Club 37: 526, plates 34, 35. (1910) |
Web links |
|