Viola lobata |
Viola lobata var. integrifolia |
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moose horn violet, pine violet, yellow wood violet |
delta leafed forest violet |
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Habit | Plants perennial, caulescent, not stoloniferous, 5–46 cm. | |||||
Stems | 1–3, 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 blades unlobed; cauline blades unlobed, deltate to rhombic, ovate, or reniform-cordate, usually longer than wide, margins ± serrate, crenate-serrate, or dentate to deeply serrate or coarsely and irregularly lacerate, often entire distally, apex acute, often long-tapered. |
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Peduncles | 2–13 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. |
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Capsules | ellipsoid-ovoid, 6–16 mm, glabrous. |
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Seeds | light brown, blotched or streaked with brown, shiny, 2.1–2.7 mm. |
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2n | = 12. |
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Viola lobata |
Viola lobata var. integrifolia |
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Phenology | Flowering Mar–Aug. | |||||
Habitat | Dry, shaded or open forests | |||||
Elevation | 300–2100 m (1000–6900 ft) | |||||
Distribution |
CA; OR; nw Mexico
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CA; OR |
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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.) |
Variety integrifolia is considered uncommon; it occurs from southwestern Oregon to southern California and is possibly more common in Oregon than California. Plants in the same population may have subserrate, deeply serrate, or irregularly lacerate leaves. (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. 137. | ||||
Parent taxa | Violaceae > Viola | Violaceae > Viola > Viola lobata | ||||
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Subordinate taxa | ||||||
Synonyms | V. lobata subsp. integrifolia | |||||
Name authority | Bentham: Pl. Hartw., 298. (1849) | S. Watson: in W. H. Brewer et al., Bot. California 1: 57. (1876) | ||||
Web links |