Viola cuneata |
Viola novae-angliae |
|
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northern two-eyed or wedge-leaf violet, northern two-eyed violet, wedge-leaf violet |
New England blue violet, New England violet |
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Habit | Plants perennial, caulescent, not stoloniferous, 2–25 cm. | Plants perennial, acaulescent, not stoloniferous, 5–50 cm; rhizomes thick, fleshy. |
Stems | 1–3, usually erect, sometimes prostrate or ascending, glabrous, from shallow, fleshy rhizome or deep-seated caudex with fleshy roots. |
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Leaves | basal and cauline; basal: 2–6; stipules lanceolate, margins entire or gland-toothed, apex acute; petiole 4.5–9.8 cm, glabrous; blade purple-veined, orbiculate-ovate to deltate, 1–4 × 2.7–3.8 cm, usually shiny, leathery, base cuneate, margins serrate, eciliate, apex acute, mucronulate, surfaces glabrous; cauline similar to basal except: stipules lanceolate to ovate, margins entire or erose to lacerate, with or without gland-tipped processes, apex acute to acuminate; petiole 0.5–20 cm; blade usually rhombic, sometimes orbiculate, 0.9–2.6 × 0.7–1.8 cm, margins crenate to ± serrate, apex acute to obtuse. |
basal, 2–8, ascending to erect; stipules linear-lanceolate to broadly lanceolate, margins entire, sometimes distally glandular, apex acute; petiole 5–25 cm, densely pubescent; blade unlobed, narrowly ovate to narrowly deltate, 3.5–7 × 2–5 cm, base cordate, margins uniformly crenate to serrate, ciliate or eciliate, apex acute, surfaces usually glabrous, rarely pubescent. |
Peduncles | 1–10.5 cm, glabrous. |
3–25 cm, glabrous or pubescent. |
Flowers | sepals lanceolate, margins eciliate, auricles 0.5–1 mm; petals deep reddish violet abaxially, white adaxially, upper 2 sometimes with purple patch basally, lateral 2 with purple patch basally beyond smaller yellow area, usually bearded, sometimes beardless, lowest purple-veined with yellow area basally, 8–14 mm, spur yellow, gibbous, 1–2 mm; style head bearded; cleistogamous flowers axillary. |
sepals lanceolate to ovate, margins ciliate or eciliate, auricles 1–2 mm; petals light to dark blue- or dark purple-violet or reddish purple, lowest and sometimes lateral 2 purple-veined, lateral 2 bearded, lowest bearded or beardless, 15–25 mm, spur same color as petals, gibbous, 2–3 mm; style head beardless; cleistogamous flowers on prostrate to ascending peduncles. |
Capsules | ± spherical, 5–9 mm, glabrous. |
ellipsoid, 5–12 mm, glabrous. |
Seeds | deep brown-purple, 2.1–3 mm. |
beige, mottled to bronze, 1.5–2.5 mm. |
2n | = 54. |
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Viola cuneata |
Viola novae-angliae |
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Phenology | Flowering Mar–Sep. | Flowering Apr–Jun. |
Habitat | Open pine or oak forests, often serpentine soil | Gravelly, wet, rocky shores of lakes and streams, meadows |
Elevation | 600–2200 m (2000–7200 ft) | 0–100 m (0–300 ft) |
Distribution |
CA; OR
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ME; MI; MN; WI; MB; NB; ON; QC
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Discussion | Viola cuneata often occurs on serpentine-derived soil and is closely related to V. flettii, V. hallii, and V. ocellata (V. B. Baird 1942). Originally described as beardless by Watson, the lateral petals of flowers in the same population can be prominently bearded or essentially beardless. The cauline blades of Viola cuneata are often vertical, especially early in season. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
L. E. McKinney (1992) considered Viola novae-angliae to be a variety of V. sororia; N. L. Gil-Ad (1997) treated it as a distinct species. H. E. Ballard and S. C. Gawler (1994) also considered V. novae-angliae distinct and suggested it might be a hybrid between V. sagittata and V. sororia. Viola novae-angliae appears to have a close affinity with V. sororia; we recognize them here as separate species. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 6, p. 129. | FNA vol. 6, p. 139. |
Parent taxa | Violaceae > Viola | Violaceae > Viola |
Sibling taxa | ||
Synonyms | V. septentrionalis var. grisea, V. sororia var. grisea, V. sororia var. novae-angliae | |
Name authority | S. Watson: Proc. Amer. Acad. Arts 14: 290. (1879) | House: Rhodora 6: 226, plate 59. (1904) |
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