Viola walteri |
Viola cuneata |
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prostrate blue violet |
northern two-eyed or wedge-leaf violet, northern two-eyed violet, wedge-leaf violet |
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Habit | Plants perennial, caulescent, stoloniferous, 5–19 cm; stolons green or reddish, leafy, sometimes rooting at nodes, becoming lignified in age. | Plants perennial, caulescent, not stoloniferous, 2–25 cm. | ||||
Stems | 1–5, prostrate, spreading, finely puberulent, from current and/or previous year’s growth, on usually vertical, fleshy rhizome, rooting and forming rosettes at or near tip; rooted rosettes often develop into an erect, fleshy caudex from which new stems are produced. |
1–3, usually erect, sometimes prostrate or ascending, glabrous, from shallow, fleshy rhizome or deep-seated caudex with fleshy roots. |
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Leaves | basal and cauline; basal: 3–6; stipules lanceolate, margins laciniate, projections often long-filamentous, apex long-acuminate; petiole 2.3–7.3 cm, glabrous or pubescent; blade often purple-spotted abaxially and/or adaxially, ovate to reniform, 1.2–5 × 1.6–3.6 cm, base deeply to broadly cordate, margins crenulate to serrate, ciliate or eciliate, apex rounded to obtuse, surfaces glabrous or pubescent; cauline similar to basal except: stipules ovate to lanceolate, margins laciniate; petiole 1–3.5 cm; blade 1.3–2.9 × 1.4–3.2 cm. |
basal and cauline; basal: 2–6; stipules lanceolate, margins entire or gland-toothed, apex acute; petiole 4.5–9.8 cm, glabrous; blade purple-veined, orbiculate-ovate to deltate, 1–4 × 2.7–3.8 cm, usually shiny, leathery, base cuneate, margins serrate, eciliate, apex acute, mucronulate, surfaces glabrous; cauline similar to basal except: stipules lanceolate to ovate, margins entire or erose to lacerate, with or without gland-tipped processes, apex acute to acuminate; petiole 0.5–20 cm; blade usually rhombic, sometimes orbiculate, 0.9–2.6 × 0.7–1.8 cm, margins crenate to ± serrate, apex acute to obtuse. |
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Peduncles | 5–9.6 cm, glabrous or pubescent. |
1–10.5 cm, glabrous. |
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Flowers | sepals lanceolate to ovate, margins mostly eciliate, auricles 0.5–1 mm; petals pale to bluish violet on both surfaces, lower 3 white basally and darker violet-veined, lateral 2 and often upper 2 and lowest bearded, lowest 15–18 mm, spur white, gibbous to usually elongated, 3–5 mm; style head bearded; cleistogamous flowers axillary. |
sepals lanceolate, margins eciliate, auricles 0.5–1 mm; petals deep reddish violet abaxially, white adaxially, upper 2 sometimes with purple patch basally, lateral 2 with purple patch basally beyond smaller yellow area, usually bearded, sometimes beardless, lowest purple-veined with yellow area basally, 8–14 mm, spur yellow, gibbous, 1–2 mm; style head bearded; cleistogamous flowers axillary. |
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Capsules | ovoid to ellipsoid, 5–7 mm, glabrous. |
± spherical, 5–9 mm, glabrous. |
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Seeds | brown, 1–1.5 mm. |
deep brown-purple, 2.1–3 mm. |
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2n | = 20. |
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Viola walteri |
Viola cuneata |
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Phenology | Flowering Mar–Sep. | |||||
Habitat | Open pine or oak forests, often serpentine soil | |||||
Elevation | 600–2200 m (2000–7200 ft) | |||||
Distribution |
AL; AR; FL; GA; KY; LA; MD; MS; NC; OH; PA; SC; TN; TX; VA; WV
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CA; OR
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Discussion | Varieties 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Viola cuneata often occurs on serpentine-derived soil and is closely related to V. flettii, V. hallii, and V. ocellata (V. B. Baird 1942). Originally described as beardless by Watson, the lateral petals of flowers in the same population can be prominently bearded or essentially beardless. The cauline blades of Viola cuneata are often vertical, especially early in season. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 6, p. 163. | FNA vol. 6, p. 129. | ||||
Parent taxa | Violaceae > Viola | Violaceae > Viola | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Name authority | House: Torreya 6: 172. (1906) | S. Watson: Proc. Amer. Acad. Arts 14: 290. (1879) | ||||
Web links |