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prostrate blue violet

Photo is of parent taxon

Appalachian blue or Appalachian violet

Habit Plants perennial, caulescent, stoloniferous, 5–19 cm; stolons green or reddish, leafy, sometimes rooting at nodes, becoming lignified in age.
Stems

1–5, prostrate, spreading, finely puberulent, from current and/or previous year’s growth, on usually vertical, fleshy rhizome, rooting and forming rosettes at or near tip; rooted rosettes often develop into an erect, fleshy caudex from which new stems are produced.

Leaves

basal and cauline;

basal: 3–6;

stipules lanceolate, margins laciniate, projections often long-filamentous, apex long-acuminate;

petiole 2.3–7.3 cm, glabrous or pubescent;

blade often purple-spotted abaxially and/or adaxially, ovate to reniform, 1.2–5 × 1.6–3.6 cm, base deeply to broadly cordate, margins crenulate to serrate, ciliate or eciliate, apex rounded to obtuse, surfaces glabrous or pubescent;

cauline similar to basal except: stipules ovate to lanceolate, margins laciniate;

petiole 1–3.5 cm;

blade 1.3–2.9 × 1.4–3.2 cm.

blade surfaces glabrous, if pubescent, hairs usually confined to adaxial surface.

Peduncles

5–9.6 cm, glabrous or pubescent.

Flowers

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

petals pale to bluish violet on both surfaces, lower 3 white basally and darker violet-veined, lateral 2 and often upper 2 and lowest bearded, lowest 15–18 mm, spur white, gibbous to usually elongated, 3–5 mm;

style head bearded; cleistogamous flowers axillary.

Capsules

ovoid to ellipsoid, 5–7 mm, glabrous.

Seeds

brown, 1–1.5 mm.

Stipule

margin processes to 1/2 stipule length.

2n

= 20.

= 20.

Viola walteri

Viola walteri var. appalachiensis

Phenology Flowering Apr–Jun.
Habitat Mesic woodlands, open woodlands on serpentine, floodplains, edges of bogs and swamps
Elevation 500–1100 m (1600–3600 ft)
Distribution
from FNA
AL; AR; FL; GA; KY; LA; MD; MS; NC; OH; PA; SC; TN; TX; VA; WV
[WildflowerSearch map]
[BONAP county map]
from FNA
MD; NC; PA; WV
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

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

L. E. McKinney (1986) considered the differences between Viola walteri and V. appalachiensis to be minor, choosing not to recognize the latter. H. E. Ballard and D. E. Wujek (1994) provided evidence to continue recognition of V. appalachiensis.

Variety appalachiensis is reported to hybridize with Viola striata (= V. ×wujekii H. E. Ballard).

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

Key
1. Leaf blades pubescent, hairs scattered throughout or concentrated along veins, adaxial surfaces, or toward margins; stipule margin processes 1/2+ stipule length.
var. walteri
1. Leaf blades glabrous or pubescent, hairs usually confined to adaxial surfaces; stipule margin processes to 1/2 stipule length.
var. appalachiensis
Source FNA vol. 6, p. 163. FNA vol. 6, p. 164.
Parent taxa Violaceae > Viola Violaceae > Viola > Viola walteri
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. 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 var. walteri
Subordinate taxa
V. walteri var. appalachiensis, V. walteri var. walteri
Synonyms V. appalachiensis
Name authority House: Torreya 6: 172. (1906) (L. K. Henry) L. E. McKinney ex S. P. Grund & B. L. Isaac: Castanea 72: 59. (2007)
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