Viola glabella |
Viola hastata |
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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 |
halberd-leaf or halberdleaf yellow violet, halberdleaf yellow violet |
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Habit | Plants perennial, caulescent, not stoloniferous, 3–38 cm. | Plants perennial, caulescent, not stoloniferous, 5–30 cm. |
Stems | 1–3, erect or prostrate, leafless proximally, leafy distally, glabrous or finely puberulent, on caudex from fleshy rhizome. |
1(–2), erect, leafless proximally, leafy distally, glabrous or sparsely puberulent, from fleshy rhizome. |
Leaves | 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. |
basal and cauline; basal: 0–1; stipules ovate to lanceolate, margins laciniate with gland-tipped projections, apex usually acuminate; petiole 3–11.5 cm, usually glabrous; blade sometimes gray-green abaxially, usually mottled light green adaxially, widely or narrowly hastate to ovate, 2.5–4.4 × 1.8–3.2 cm, base hastate to cordate or truncate, margins serrate or crenate, ciliate or eciliate, apex acute, surfaces usually glabrous, sometimes scabrous; cauline similar to basal except: leaves usually restricted to distal ends of naked stems; petiole 1–2.5 cm; blade 2–10 × 1.1–4.5 cm. |
Peduncles | 2–8 cm, glabrous or pubescent. |
1–5.3 cm, usually glabrous. |
Flowers | 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. |
sepals lanceolate to ovate, margins mostly eciliate, auricles 0.5–1 mm; petals lemon-yellow usually on both surfaces, lower 3 and sometimes upper 2 brownish purple-veined, lateral 2 bearded, lowest 9.5–12 mm, spur yellow to greenish, gibbous, 0.5–2 mm; style head bearded; cleistogamous flowers axillary. |
Capsules | ovoid to ellipsoid, 7–13 mm, glabrous. |
ovoid to ellipsoid, 6–8 mm, glabrous. |
Seeds | light to dark brown, shiny, 2–2.2 mm. |
beige to bronze, 2–2.5 mm. |
2n | = 24. |
= 12. |
Viola glabella |
Viola hastata |
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Phenology | Flowering Mar–Aug. | Flowering late Mar–May. |
Habitat | Damp, wet, or shady places in forests, stream banks | Rich woods, chiefly mountains and piedmont |
Elevation | 0–2600 m (0–8500 ft) | 50–2000 m (200–6600 ft) |
Distribution |
AK; CA; ID; MT; OR; WA; AB; BC; Asia
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AL; GA; KY; MD; NC; NY; OH; PA; SC; TN; VA; WV
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Discussion | 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.) |
V. B. Baird (1942) commented that Viola hastata is more closely related to V. glabella than to any eastern species. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 6, p. 131. | FNA vol. 6, p. 133. |
Parent taxa | Violaceae > Viola | Violaceae > Viola |
Sibling taxa | ||
Synonyms | V. californica, V. canadensis var. sitchensis, V. glabella var. remotifolia | |
Name authority | Nuttall: in J. Torrey and A. Gray, Fl. N. Amer. 1: 142. (1838) | Michaux: Fl. Bor.-Amer. 2: 149. (1803) |
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