Flora of North America species comparison

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Viola bicolor

field pansy, violette de Rafinesque, wild pansy
Peduncles

1–4.5 cm, glabrous or pubescent.
Flowers

sepals ovate to lanceolate, margins ciliate or eciliate, auricles 0.5–2 mm;

petals white or cream to pale bluish violet on both surfaces, dark purple-veined, lateral 2 longer than sepals, bearded, lowest 8–10 mm, spur white to blue-violet, gibbous, 1–1.5 mm, shorter than or equaling sepal auricles;

style head bearded; cleistogamous flowers axillary.
Capsules

ellipsoid to oblong, 4–7 mm, glabrous.
Seeds

beige to bronze, 0.3–1.5 mm.
2n

= 34.

Viola bicolor
Phenology Flowering Mar–May.
Habitat Prairies, open woodlands, fields, pastures, roadsides, lawns, waste ground
Elevation 0–3000 m (0–9800 ft)
Distribution
from FNA
AL; AR; AZ; CO; CT; DC; DE; FL; GA; IA; ID; IL; IN; KS; KY; LA; MA; MD; MO; MS; NC; NE; NJ; NM; NY; OH; OK; PA; RI; SC; SD; TN; TX; VA; WV; ON; SK
[WildflowerSearch map]
[BONAP county map]
Discussion

Viola bicolor is the only pansy native to North America (V. B. Baird 1942; J. Clausen et al. 1964; A. E. Radford et al. 1968) and is the only annual Viola species that produces cleistogamous flowers (Baird; A. Gershoy 1934). Roots of V. bicolor have the odor of wintergreen when crushed (W. J. Hayden and J. Clough 1990).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 6, p. 122.
Parent taxa Violaceae > Viola
Sibling taxa
V. adunca, V. affinis, V. arvensis, V. bakeri, V. beckwithii, V. biflora, V. blanda, V. brittoniana, V. canadensis, V. canina, V. charlestonensis, V. clauseniana, V. cucullata, V. cuneata, V. douglasii, V. egglestonii, V. epipsila, V. flettii, V. frank-smithii, V. glabella, V. guadalupensis, V. hallii, V. hastata, V. hirsutula, V. howellii, V. japonica, V. labradorica, V. lanceolata, V. langsdorffii, V. lithion, V. lobata, V. macloskeyi, V. missouriensis, V. nephrophylla, V. novae-angliae, V. nuttallii, V. ocellata, V. odorata, V. orbiculata, V. palmata, V. palustris, V. pedata, V. pedatifida, V. pedunculata, V. pinetorum, V. praemorsa, V. primulifolia, V. prionantha, V. pubescens, V. purpurea, V. quercetorum, V. renifolia, V. riviniana, V. rostrata, V. rotundifolia, V. sagittata, V. selkirkii, V. sempervirens, V. septemloba, V. sheltonii, V. sororia, V. striata, V. subsinuata, V. tomentosa, V. tricolor, V. trinervata, V. tripartita, V. umbraticola, V. utahensis, V. vallicola, V. villosa, V. walteri
Synonyms V. kitaibeliana var. rafinesquei, V. rafinesquei
Name authority Pursh: Fl. Amer. Sept. 1: 175. (1813)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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