Viola striata
Viola sheltonii
cream or cream-white or pale or striped or striped cream violet, creamy violet, striped cream violet, striped white violet, violette strièe
cut-leaf violet, fan violet, Shelton's violet
1–4, ascending to erect (often declining during anthesis), glabrous or pubescent, on caudex from fleshy rhizome.
1–3, prostrate, decumbent, or erect, glabrous or sparsely puberulent, from short, often vertical, deep-seated or usually shallow, subligneous rhizome.
basal and cauline;
basal: 2–6;
stipules lanceolate to narrowly deltate, margins laciniate, apex acute;
petiole 3–6 cm, glabrous or puberulent;
blade ovate to reniform, 2–7 × 1–2.5 cm, base cordate, margins crenate to serrate, ciliate or eciliate, apex obtuse to acute, surfaces glabrous or pubescent;
cauline similar to basal except: stipules lanceolate, margins laciniate;
petiole 3–7 cm;
distal blades ovate to deltate, 1–6 × 1–4 cm, base cordate, apex acuminate to acute.
basal and cauline;
basal: 1–3, palmately compound, leaflets 3;
stipules lanceolate-ovate, margins laciniate with gland-tipped projections, apex acute to acuminate;
petiole 8.6–21 cm, glabrous or sparsely puberulent;
blade reniform or ovate to ± orbiculate, 2–7 × 2–11 cm, coriaceous, base tapered, each leaflet cleft or dissected into 3 ± obovate lobes, each lobe further divided into 2–3 oblanceolate, pandurate, spatulate, oblong, lanceolate, or elliptic, lobes 2–10 mm wide, margins entire, ciliate or eciliate, apex acute to obtuse, mucronulate, surfaces glabrous or sparsely puberulent;
cauline similar to basal except: stipules ovate to lanceolate, margin projections gland-tipped or eglandular, apex long-acuminate;
petiole 5.5–12 cm;
blade 1.2–6.3 × 1.2–10.5 cm.
5–12 cm, glabrous or pubescent.
5–19 cm, glabrous or sparsely puberulent.
sepals lanceolate, margins ciliate or eciliate, auricles 2–3 mm;
petals white or cream on both surfaces, without yellow patch basally, lowest and usually lateral 2 purple-veined, lateral 2 and sometimes all densely bearded, lowest 10–18 mm, spur white, gibbous to elongated, 3–6 mm;
style head bearded; cleistogamous flowers axillary.
sepals lanceolate, margins ciliate or eciliate, auricles 0.5–1 mm;
petals deep lemon-yellow adaxially, upper 2 dark brown to brownish purple abaxially, lower 3 and sometimes upper 2 brownish purple-veined, lateral 2 bearded or beardless, lowest 7–18 mm, spur yellowish with brownish purple specks, gibbous, 1–2 mm;
style head bearded; cleistogamous flowers axillary.
ellipsoid, 6–7 mm, glabrous.
oblong to ovoid, 6–8 mm, glabrous or puberulent.
beige to bronze, 1.5–3 mm.
brownish, shiny, ca. 2.5 mm.
= 20.
= 12.
Viola striata
Viola sheltonii
Dead, long-persistent stems of Viola striata are often present the following season. In flower, the plants are often mistaken for V. canadensis because the petals are whitish (H. E. Ballard 1992).
Viola striata reportedly hybridizes with V. labradorica (= V. ×eclipes H. E. Ballard), V. rostrata (= V. ×brauniae Grover ex Cooperrider), V. walteri var. appalachiensis (= V. ×wujekii H. E. Ballard), and V. walteri var. walteri (= V. ×cooperrideri H. E. Ballard).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
The cleistogamous flowers of Viola sheltonii are borne on long, prostrate peduncles usually buried in duff around the plant. Mature cleistogamous capsules are usually hidden and the dehisced seeds remain close to the parent plant. Some populations of V. sheltonii produce only cleistogamous flowers (D. Klaber 1976).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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