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Viola hallii

Hall's violet, Oregon violet, wild pansy

pinto violet, two-eyed violet, western heart's ease, western heart's ease or two-eyed or southern two-eyed violet

Habit Plants perennial, caulescent, not stoloniferous, 5–22 cm. Plants perennial, caulescent, not stoloniferous, 2–37 cm.
Stems

1–3, decumbent or ascending to erect, ca. 1/2 subterranean, glabrous, clustered on single, short, vertical, deep-seated caudex.

1–3, ascending to erect, ± glabrous or usually puberulent, on caudex from shallow, fleshy rhizome or deep-seated caudex with fleshy roots.

Leaves

basal and cauline;

basal: 1–4, palmately compound, ± 2-ternate or 3-ternate, leaflets 3;

stipules adnate to petiole, forming 2 linear-lanceolate wings, unlobed, margins entire, apex of each wing free, acute;

petiole 5–8 cm, glabrous;

blade ovate to deltate, 2.8–6 × 2.6–6.5 cm, ± coriaceous, base tapered, ultimate lobes narrowly elliptic, lanceolate, or oblanceolate, 1–7 mm wide, margins entire, ciliate or eciliate, apex acute, mucronulate, surfaces glabrous;

cauline similar to basal except: stipules usually lanceolate, sometimes broadly ovate, ± leaflike, margins toothed;

petiole 1.3–6 cm;

blade 2–4.8 × 1.2–5.5 cm.

basal and cauline;

basal: 1–6;

stipules deltate, margins laciniate, apex usually long-acuminate;

petiole 3.7–10 cm, puberulent;

blade ovate, deltate, or subreniform, 1–6 × 1.2–4 cm, base usually cordate to subcordate, margins crenate, usually ciliate, apex acute, mucronulate, surfaces usually sparsely puberulent, glabrous early;

cauline similar to basal except: stipules lanceolate, margins ±fimbriate, sometimes stipitate-glandular, sometimes entire, erose, or ± laciniate;

petiole 0.4–9 cm;

blade ovate to deltate, 1.6–4.4 × 1.1–3.6 cm, base subcordate to truncate, margins crenate to ± serrate, ciliate, apex acute to obtuse.

Peduncles

2.5–11 cm, glabrous.

1–10 cm, puberulent.

Flowers

sepals lanceolate to ovate, margins ciliate, auricles 0.5–1 mm;

petals: upper 2 almost black abaxially, dark reddish violet adaxially, lower 3 pale yellow, cream, or ± white, lateral 2 bearded, with deep yellow to orange patch basally, dark reddish violet-veined, lowest with deep yellow to orange patch basally, dark reddish violet-veined, 5–18 mm, spur yellow, gibbous, 0.5–2 mm;

style head bearded; cleistogamous flowers absent.

sepals lanceolate, margins ciliate, auricles 0.5–1.5 mm;

petals white adaxially, upper 2 and sometimes lower 3 deep reddish violet abaxially, all with yellow area basally, lateral 2 with purple patch basally distal to smaller yellow area, bearded, lowest with yellow patch basally, purple-veined, 5–15 mm, spur yellow or greenish, gibbous, 1–2.5 mm;

style head bearded; cleistogamous flowers axillary.

Capsules

ellipsoid, 4–12 mm, glabrous.

spherical to spherical-ovoid, 5–11 mm, minutely scabrous.

Seeds

light brown, shiny, 3.2–3.5 mm.

brown-purple, ca. 2 mm.

2n

= 60, 72.

= 12.

Viola hallii

Viola ocellata

Phenology Flowering Apr–Jul. Flowering Mar–Jul.
Habitat Open forests, grassy hills, chaparral, frequently serpentine or gravelly soil Rocky areas, grassy banks, thickets, often on serpentine soil
Elevation 500–2100 m (1600–6900 ft) 100–1100 m (300–3600 ft)
Distribution
from FNA
CA; OR
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; OR
[WildflowerSearch map]
[BONAP county map]
Discussion

Viola hallii was discovered on the grounds of Willamette University in Salem, Oregon, by Elihu Hall, a professor at that institution (V. B. Baird 1942). Leaves of V. hallii are similar to V. beckwithii.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 6, p. 133. FNA vol. 6, p. 140.
Parent taxa Violaceae > Viola Violaceae > Viola
Sibling taxa
V. adunca, V. affinis, V. arvensis, V. bakeri, V. beckwithii, V. bicolor, 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. 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
V. adunca, V. affinis, V. arvensis, V. bakeri, V. beckwithii, V. bicolor, 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. 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
Name authority A. Gray: Proc. Amer. Acad. Arts 8: 377. (1872) Torrey & A. Gray: Fl. N. Amer. 1: 142. (1838)
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