Viola lobata |
Viola glabella |
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moose horn violet, pine violet, yellow wood violet |
pioneer violet, smooth yellow violet, stream or smooth yellow or yellow wood or wood or smooth yellow woodland violet, stream violet, violette glabre, yellow wood violet |
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Habit | Plants perennial, caulescent, not stoloniferous, 5–46 cm. | Plants perennial, caulescent, not stoloniferous, 3–38 cm. | ||||
Stems | 1–3, erect, leafless proximally, leafy distally, glabrous or puberulent, from subligneous rhizome. |
1–3, erect or prostrate, leafless proximally, leafy distally, glabrous or finely puberulent, on caudex from fleshy 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: 0–4(–7); stipules ovate to obovate, margins entire, crenate, or serrate, usually glandular, apex acute to obtuse; petiole 7–27.5 cm, glabrous or puberulent; blade usually reniform to ovate, sometimes orbiculate, 3.3–8.5 × 2–9.3 cm, base cordate, margins crenate to serrate, ciliate or eciliate, apex acute to obtuse, mucronulate, surfaces glabrous or finely puberulent; cauline similar to basal except: usually restricted to distal ends of naked stems; stipules ovate to oblong, margins erose or subserrate, often glandular, apex acute to acuminate; petiole 0.2–2.9 cm, glabrous or finely puberulent; blade ovate to deltate, 1.4–5.7 × 0.8–4.7 cm, base cordate to truncate, margins crenate to ± serrate, ciliate (sometimes limited to proximal half), apex acute. |
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Peduncles | 2–13 cm, glabrous or pubescent. |
2–8 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 linear-lanceolate, margins eciliate, auricles 0.5–1 mm; petals deep lemon-yellow on both surfaces, lower 3 and sometimes upper 2 brownish purple-veined, lateral 2 bearded, lowest 6–18 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. |
ovoid to ellipsoid, 7–13 mm, glabrous. |
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Seeds | light brown, blotched or streaked with brown, shiny, 2.1–2.7 mm. |
light to dark brown, shiny, 2–2.2 mm. |
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2n | = 12. |
= 24. |
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Viola lobata |
Viola glabella |
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Phenology | Flowering Mar–Aug. | |||||
Habitat | Damp, wet, or shady places in forests, stream banks | |||||
Elevation | 0–2600 m (0–8500 ft) | |||||
Distribution |
CA; OR; nw Mexico
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AK; CA; ID; MT; OR; WA; AB; BC; Asia
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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 glabella is similar in overall appearance to V. pubescens. The cauline leaves are sometimes described as appearing only near the apex of the stem (P. A. Munz 1959), but often a leaf occurs from a node on the stem below the apex. Viola californica was described from collections made in Humboldt and Trinity counties, California, and may have arisen as a hybrid between V. glabella and V. lobata var. integrifolia. It is apparently limited to Abies concolor forests above 1520 m (M. S. Baker 1953). Study of V. californica is needed to determine if taxonomic recognition is warranted. (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. 131. | ||||
Parent taxa | Violaceae > Viola | Violaceae > Viola | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | V. californica, V. canadensis var. sitchensis, V. glabella var. remotifolia | |||||
Name authority | Bentham: Pl. Hartw., 298. (1849) | Nuttall: in J. Torrey and A. Gray, Fl. N. Amer. 1: 142. (1838) | ||||
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