Viola sagittata |
Viola blanda |
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arrow-leaf violet, arrowhead violet |
sweet white violet, violette agréable |
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Habit | Plants perennial, acaulescent, not stoloniferous, 5–50 cm; rhizome thick, fleshy. | Plants perennial, acaulescent, stoloniferous, 3–20 cm; stolons pale, often rooting and leafy at nodes; rhizome short, slender, fleshy. | ||||
Leaves | basal, 4–8, ascending to erect; stipules linear-lanceolate, margins entire, apex acute; petiole 2–13 cm, glabrous or pubescent; middle and lateral blade lobes differ in width and/or shape, earliest blades ovate to elliptic, mid-season blades ovate, elliptic, narrowly elliptic to narrowly deltate, 1–8 × 1–5 cm, incised or lobed at base only, base sagittate or hastate, truncate, attenuate, or ± cordate, margins crenate or serrate, ciliate or eciliate, apex acute, surfaces glabrous or pubescent. |
basal, 2–9, prostrate to ascending; stipules linear-lanceolate, margins entire, apex acute; petiole 2–11 cm, usually sparsely pubescent; blade unlobed, reniform to ovate, 2–4 × 2–4 cm, base cordate, lobes often overlapping, margins serrate, ciliate or eciliate, apex rounded or acute to acuminate, surfaces sometimes glabrous, usually sparsely pubescent adaxially. |
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Peduncles | 3–15 cm, glabrous or pubescent. |
3–11 cm, glabrous or pubescent. |
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Flowers | sepals lanceolate to ovate, margins ciliate or eciliate, auricles 2–3 mm; petals light to dark violet on both surfaces, lower 3 white basally, lowest dark violet-veined, lateral 2 densely bearded, spur on lowest petal occasionally bearded, lowest 10–15 mm, spur light to dark violet, gibbous, 2–3 mm; style head beardless; cleistogamous flowers on prostrate, ascending, or erect peduncles. |
sepals lanceolate to ovate, margins mostly eciliate, auricles 1–2 mm; petals white on both surfaces, lower 3 purple-veined, lateral 2 usually beardless, lowest 8–10 mm, spur white, gibbous, 1–2 mm; style head beardless; cleistogamous flowers axillary. |
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Capsules | ellipsoid, 10–14 mm, glabrous. |
ovoid to ellipsoid, 4–6 mm, glabrous. |
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Seeds | beige, mottled to bronze, 1.3–2.5 mm. |
beige to bronze, 1.5–2 mm. |
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2n | = 44, 48. |
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Viola sagittata |
Viola blanda |
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Phenology | Flowering Apr–Jun. | |||||
Habitat | Rich woods | |||||
Elevation | 30–2000 m (100–6600 ft) | |||||
Distribution |
AL; AR; CT; DC; DE; GA; IA; IL; IN; KS; KY; LA; MA; MD; ME; MI; MN; MO; MS; NC; NH; NJ; NY; OH; OK; PA; RI; SC; TN; TX; VA; VT; WI; WV; NB; NS; ON; PE; QC
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AL; CT; DC; DE; GA; IA; IL; IN; KY; MA; MD; ME; MI; MN; NC; ND; NH; NJ; NY; OH; PA; RI; SC; TN; VA; VT; WI; WV; AB; MB; NB; NL; NS; ON; PE; QC; SK
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Discussion | Varieties 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Viola blanda occurs in small colonies; individual plants are interconnected by stolons. Whether to recognize Viola incognita at any taxonomic level is currently unresolved. It is said to have pubescent leaf blades, greenish peduncles, nontwisted lateral petals, and a preference for moister habitats. Most of these characters fall within the range of variation observed in V. blanda. N. H. Russell (1965) noted that Viola incognita is principally found in glaciated areas whereas V. blanda is found in nonglaciated areas. Á. Löve and D. Löve (1982b) and J. M. Canne (1987) reported a chromosome count of 2n = 44; J. Clausen (1929) and A. Gershoy (1934) reported 2n = 48. V. B. Baird (1942) reported that V. blanda (and V. incognita) have fragrant flowers. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 6, p. 155. | FNA vol. 6, p. 124. | ||||
Parent taxa | Violaceae > Viola | Violaceae > Viola | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | V. blanda var. palustriformis, V. incognita, V. incognita var. forbesii, V. leconteana | |||||
Name authority | Aiton: Hort. Kew. 3: 287. (1789) | Willdenow: Hort. Berol. 1(2): plate 24. (1804) | ||||
Web links |