Viola lobata |
Viola tripartita |
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moose horn violet, pine violet, yellow wood violet |
three-part or Piedmont or threepart violet, threepart violet |
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Habit | Plants perennial, caulescent, not stoloniferous, 5–46 cm. | Plants perennial, caulescent, not stoloniferous, 10–40 cm. | ||||
Stems | 1–3, erect, leafless proximally, leafy distally, glabrous or puberulent, from subligneous rhizome. |
1(2), erect, leafless proximally, leafy distally, glabrous or puberulent, from subligneous rhizome. |
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Leaves | basal and cauline; basal: 0–2, unlobed or palmately 3–11-lobed; stipules ovate to lanceolate, margins ± entire or serrate, apex acute; petiole 5–27 cm, glabrous or puberulent; blade sometimes glaucous, deltate to reniform, 3.5–8.5 × 4.5–13.5 cm, base cordate, truncate, or attenuate, margins on unlobed leaves coarsely dentate-serrate, margins on lobed leaves usually entire, sometimes few-toothed, ciliate (sometimes only proximal 1/2) or eciliate, apex acute to obtuse, mucronulate, surfaces glabrous or puberulent; cauline similar to basal except: distal on naked stems, unlobed and divided leaves can occur on same plant, if divided, palmately 3–12-lobed; stipules sometimes large and ± leaflike, margins entire, lacerate, or laciniate, sometimes with gland-tipped projections, apex acute to acuminate; petiole 0.2–8.8 cm; blade reniform to reniform-cordate, ± ovate, deltate, or rhombic, 1.5–5.5 × 1.4–10 cm, base cordate, subcordate, truncate, or attenuate, margins entire, crenate-serrate, or dentate, or coarsely lacerate to deeply serrate, often entire distally, ciliate or rarely eciliate, apex acute to obtuse, often long-tapered, mucronulate. |
basal and cauline; basal: 0(–2); stipules ovate, not leaflike, margins entire, apex acute to acuminate, surfaces glabrous or puberulent; petiole 9–11.5 cm, glabrous or puberulent; blade unlobed, ovate, or 3–5-lobed, 4–5 × 1–5 cm, base cordate, margins entire or crenate-serrate, ciliate or eciliate, apex acute, surfaces glabrous or ± puberulent; cauline similar to basal except: restricted to distal ends of stems; stipules ovate to oblong; petiole 0.7–7.2 cm, glabrous or puberulent; blade unlobed, ovate or deltate, or 3-lobed (if 3-lobed, lateral lobes falcate, middle rhombic, longer than others, lobes may appear petiolate; unlobed and 3-lobed leaves can occur on same plant), 1–6 × 0.5–5.5 cm, base truncate to cuneate, margins serrate, ciliate or eciliate, surfaces glabrous or pubescent. |
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Peduncles | 2–13 cm, glabrous or pubescent. |
1.5–4 cm, glabrous or pubescent. |
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Flowers | sepals lanceolate, margins ciliate or eciliate, auricles 0.1–1 mm; petals deep lemon-yellow adaxially, usually upper 2 and sometimes lateral 2 brownish purple abaxially, lower 3 and sometimes upper 2 brownish purple-veined basally, lateral 2 bearded, lowest 8–19 mm, spur yellow to greenish, gibbous, 0.5–2 mm; style head bearded; cleistogamous flowers axillary. |
sepals lanceolate to ovate, margins ciliate or eciliate, auricles 0.1–0.5 mm; petals lemon-yellow adaxially, upper 2, rarely others, brownish purple abaxially, lowest and usually lateral 2 brownish purple-veined, lateral 2 and sometimes lowest bearded, lowest 10–18 mm, spur yellow, gibbous, 0.5–2 mm; style head bearded; cleistogamous flowers axillary. |
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Capsules | ellipsoid-ovoid, 6–16 mm, glabrous. |
ovoid to ellipsoid, 9–12 mm, glabrous. |
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Seeds | light brown, blotched or streaked with brown, shiny, 2.1–2.7 mm. |
beige, bronze, or brown, 2.4–3 mm. |
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2n | = 12. |
= 12. |
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Viola lobata |
Viola tripartita |
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Phenology | Flowering Mar–May. | |||||
Habitat | Rich woods | |||||
Elevation | 50–1600 m (200–5200 ft) | |||||
Distribution |
CA; OR; nw Mexico
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AL; FL; GA; KY; MS; NC; OH; PA; SC; TN; VA; WV
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Discussion | Varieties 2 (2 in the flora). V. B. Baird (1942) noted that Viola lobata was more closely related to V. tripartita than to any western Viola. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Some authors recognize two varieties of Viola tripartita based on lobed versus unlobed leaves. F. L. Lévesque and P. M. Dansereau (1966) suggested that leaf variation is the only character difference between vars. tripartita and glaberrima. N. H. Russell (1965) stated that V. tripartita plants with lobed and unlobed leaves are sympatric and frequently intergrade and did not recognize them as distinct. The situation with two leaf forms in V. tripartita is similar to V. lobata, which also has two leaf forms. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 6, p. 137. | FNA vol. 6, p. 161. | ||||
Parent taxa | Violaceae > Viola | Violaceae > Viola | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | V. hastata var. glaberrima, V. hastata var. tripartita, V. tripartita var. glaberrima | |||||
Name authority | Bentham: Pl. Hartw., 298. (1849) | Elliott: Sketch Bot. S. Carolina 1: 302. (1817) | ||||
Web links |