Viola pedatifida |
Viola rotundifolia |
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crow-foot violet, prairie or crowfoot or larkspur violet, prairie violet, violette pédatifide |
early yellow or roundleaf yellow violet, round-leaf violet, roundleaf yellow violet, violette à feuilles rondes |
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Habit | Plants perennial, acaulescent, not stoloniferous, 5–30 cm; rhizome thick, fleshy. | Plants perennial, acaulescent, not stoloniferous, 1–20 cm; rhizome thick, fleshy. |
Leaves | basal, 2–11, ascending to erect, 5–9-lobed; stipules linear-lanceolate, margins entire, apex acute; petiole 3–16 cm, pubescent; blade similar in width and shape, lobes lanceolate, spatulate, falcate, or linear, 1–7 × 2–8 cm, base truncate to reniform, margins entire, ciliate, apex acute to obtuse, mucronulate, surfaces pubescent, hairs sometimes concentrated on veins. |
basal, 2–5, prostrate to ascending, often overlapping basally; stipules linear-lanceolate, margins entire, apex acute; petiole 2–8 cm, pubescent; blade unlobed, orbiculate, reniform, or ovate, 2–12 × 1.5–9 cm, base cordate, margins crenate to serrate, sometimes glandular, ciliate or eciliate, apex rounded to acute, surfaces usually pubescent throughout or concentrated proximally on both surfaces. |
Peduncles | 5–18 cm, glabrous or pubescent. |
1.5–7 cm, usually pubescent. |
Flowers | sepals lanceolate to ovate, margins ciliate or eciliate, auricles 1–2 mm; petals light to soft reddish violet on both surfaces, lower 3 white basally, dark violet-veined, lateral 2 and lowest usually bearded, lowest 10–25 mm, spur same color as petals, gibbous, 2–3 mm; style head beardless; cleistogamous flowers on ascending to erect peduncles. |
sepals lanceolate to ovate, margins ciliate or eciliate, auricles 0.5–1 mm; petals deep lemon-yellow on both surfaces, lower 3 brownish purple-veined, lateral 2 bearded, lowest 8–11 mm, spur yellow, gibbous, 1–2 mm; style head beardless; cleistogamous flowers on prostrate or partially subterranean rhizomes or on racemelike, nonrooting, and usually leafless branches growing from rhizome apex. |
Capsules | ellipsoid, 10–15 mm, glabrous. |
ellipsoid, 5–10 mm, glabrous. |
Seeds | beige, mottled to bronze, 1.5–2.5 mm. |
beige, 1–2 mm. |
2n | = 54. |
= 12. |
Viola pedatifida |
Viola rotundifolia |
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Phenology | Flowering Mar–Jun. | Flowering Mar–May. |
Habitat | Prairies, grasslands, disturbed ground, dry gravelly hills | Rich montane forests and other mesic woodlands |
Elevation | 500–1000 m (1600–3300 ft) | 200–2000 m (700–6600 ft) |
Distribution |
AR; AZ; CO; IA; IL; IN; KS; MI; MN; MO; MT; ND; NE; NM; OH; OK; SD; VA; WI; WY; AB; MB; ON; SK
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CT; DE; GA; KY; MA; MD; ME; NC; NH; NY; OH; PA; RI; SC; TN; VA; VT; WV; ON; QC
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Discussion | Viola pedatifida was reported historically from, and recently rediscovered in, the Appalachian shale barrens of Virginia (T. Wieboldt, pers. comm.). Viola pedatifida reportedly hybridizes with V. sororia (= V. ×bernardii Greene). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
N. H. Russell (1955b) stated that Viola rotundifolia is a primitive member of Viola and probably one of the ancestral species of stemmed yellow violets of North America. Russell (1965) stated that morphologically, V. rotundifolia is one of the most invariable violets and suggested that its nearest relative is V. orbiculata. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 6, p. 144. | FNA vol. 6, p. 155. |
Parent taxa | Violaceae > Viola | Violaceae > Viola |
Sibling taxa | ||
Synonyms | V. delphiniifolia, V. palmata var. pedatifida | |
Name authority | G. Don: Gen. Hist. 1: 320. (1831) | Michaux: Fl. Bor.-Amer. 2: 150. (1803) |
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