Viola tomentosa
Viola septemloba
felt-leaf violet, woolly or felt-leaf or feltleaf violet, woolly violet
southern coastal violet
1–3(–5), prostrate or decumbent to erect, leafy proximally and distally, densely white-tomentose, from usually vertical, subligneous rhizome.
basal and cauline;
basal: 1–6;
stipules linear to broadly ovate-oblong, margins entire, sometimes with scattered glandular hairs, apex acute to obtuse;
petiole 2–6 cm, densely white-tomentose;
blade ± oblanceolate to elliptic, 1.5–5 × 1.4–2.1 cm, base attenuate, usually oblique, margins usually entire, rarely crenate distally, ciliate, apex acute to usually obtuse, mucronulate, surfaces densely white-tomentose abaxially, strigose adaxially;
cauline similar to basal except: stipules ovate, lanceolate, oblanceolate, or oblong, margins entire or toothed, densely ciliate with white hairs;
petiole 1.5–3.5 cm;
blade 1.8–4 × 0.6–1.1 cm.
basal, 5 or 6, prostrate to ascending;
stipules linearlanceolate, margins entire, apex acute;
petiole 1.5–7 cm, usually glabrous;
earliest leaf blades ± ovate, sometimes 3-lobed, mid-season blades 7–9-lobed, 1–9 × 1–10 cm, base broadly cordate to cordate, middle lobes narrowly elliptic, lanceolate, spatulate, or obovate, (rarely linear), lateral lobes lanceolate or spatulate to falcate, margins usually entire, sometimes serrate, sometimes with narrowly deltate or falcate appendages or teeth, ciliate or eciliate, apex acute to mucronulate, surfaces usually glabrous.
1–4 cm, densely white-tomentose.
2–20 cm, usually glabrous.
sepals lanceolate, margins ciliate-tomentose, auricles 0.5–1 mm;
petals deep lemon-yellow adaxially, upper 2 often brownish purple abaxially, lower 3 dark brown- to brownish purple-veined, lateral 2 bearded, lowest 6–11 mm, spur yellow, gibbous, 0.5–1.5 mm;
style head bearded; cleistogamous flowers absent.
sepals lanceolate to ovate, margins ciliate or eciliate, auricles 0.5–1 mm;
petals light to dark blue-violet on both surfaces, lower 3 and sometimes upper 2 white basally, lower 3 darker violet-veined, lateral 2 densely bearded, spur sometimes bearded, lowest 15–25 mm, spur usually lilac, sometimes whitish, gibbous, 2–3 mm;
style head beardless; cleistogamous flowers on ascending to erect peduncles.
± spherical, 4–5 mm, densely white-tomentose.
ellipsoid, 11–14 mm, glabrous.
brown with lighter brown mottling, 2.5–2.8 mm.
beige, mottled to bronze, 2–3 mm.
= 12.
= 54.
Viola tomentosa
Viola septemloba
Viola tomentosa occurs in El Dorado, Nevada, Placer, Plumas, and Sierra counties. M. S. Baker (1949) reported that nearly every leaf axil of V. tomentosa produces a flower bud and that these buds produce chasmogamous flowers late in season instead of cleistogamous flowers, as do other members of the V. nuttallii complex.
Viola tomentosa hybridizes with V. purpurea; the hybrids appeared sterile (M. S. Baker 1949). J. Clausen (1964) reported a putative hybrid between V. tomentosa and V. sheltonii from one location in Sierra County.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
For years this heterophyllous species was either ignored or included in Viola palmata. C. L. Pollard (1898) and E. Brainerd (1910, 1921) treated it as V. insignis Pollard, a later homonym.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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