Viola lobata |
Viola tomentosa |
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moose horn violet, pine violet, yellow wood violet |
felt-leaf violet, woolly or felt-leaf or feltleaf violet, woolly violet |
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Habit | Plants perennial, caulescent, not stoloniferous, 5–46 cm. | Plants perennial, caulescent, not stoloniferous, 7–10 cm. | ||||
Stems | 1–3, erect, leafless proximally, leafy distally, glabrous or puberulent, from subligneous rhizome. |
1–3(–5), prostrate or decumbent to erect, leafy proximally and distally, densely white-tomentose, from usually vertical, 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: 1–6; stipules linear to broadly ovate-oblong, margins entire, sometimes with scattered glandular hairs, apex acute to obtuse; petiole 2–6 cm, densely white-tomentose; blade ± oblanceolate to elliptic, 1.5–5 × 1.4–2.1 cm, base attenuate, usually oblique, margins usually entire, rarely crenate distally, ciliate, apex acute to usually obtuse, mucronulate, surfaces densely white-tomentose abaxially, strigose adaxially; cauline similar to basal except: stipules ovate, lanceolate, oblanceolate, or oblong, margins entire or toothed, densely ciliate with white hairs; petiole 1.5–3.5 cm; blade 1.8–4 × 0.6–1.1 cm. |
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Peduncles | 2–13 cm, glabrous or pubescent. |
1–4 cm, densely white-tomentose. |
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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, margins ciliate-tomentose, auricles 0.5–1 mm; petals deep lemon-yellow adaxially, upper 2 often brownish purple abaxially, lower 3 dark brown- to brownish purple-veined, lateral 2 bearded, lowest 6–11 mm, spur yellow, gibbous, 0.5–1.5 mm; style head bearded; cleistogamous flowers absent. |
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Capsules | ellipsoid-ovoid, 6–16 mm, glabrous. |
± spherical, 4–5 mm, densely white-tomentose. |
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Seeds | light brown, blotched or streaked with brown, shiny, 2.1–2.7 mm. |
brown with lighter brown mottling, 2.5–2.8 mm. |
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2n | = 12. |
= 12. |
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Viola lobata |
Viola tomentosa |
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Phenology | Flowering May–Aug. | |||||
Habitat | Dry, gravelly places, open ponderosa, Jeffrey, lodgepole pine forests | |||||
Elevation | 1500–2000 m (4900–6600 ft) | |||||
Distribution |
CA; OR; nw Mexico
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CA
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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.) |
Viola tomentosa occurs in El Dorado, Nevada, Placer, Plumas, and Sierra counties. M. S. Baker (1949) reported that nearly every leaf axil of V. tomentosa produces a flower bud and that these buds produce chasmogamous flowers late in season instead of cleistogamous flowers, as do other members of the V. nuttallii complex. Viola tomentosa hybridizes with V. purpurea; the hybrids appeared sterile (M. S. Baker 1949). J. Clausen (1964) reported a putative hybrid between V. tomentosa and V. sheltonii from one location in Sierra County. (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. 160. | ||||
Parent taxa | Violaceae > Viola | Violaceae > Viola | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Name authority | Bentham: Pl. Hartw., 298. (1849) | M. S. Baker & J. C. Clausen: Leafl. W. Bot. 5: 142. (1949) | ||||
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