Flora of North America species comparison

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Viola pubescens

downy yellow violet, yellow forest violet
Habit Plants perennial, caulescent, not stoloniferous, 10–45 cm.
Stems

1–3+, ascending to erect, leafless proximally, leafy distally, glabrous or puberulent, from subligneous rhizome.
Leaves

basal and cauline;

basal: 0–4;

stipules ovate to lanceolate, margins entire, coarsely toothed, or crenate, apex acute or obtuse;

petiole 2.7–19.6 cm, lanceolate, margins ciliate or eciliate, auricles 0.1–0.5 mm;

petals lemon-yellow on both surfaces, lower 3 brownish purple-veined, lateral 2 and sometimes others, bearded, lowest 8–18 mm, spur yellow to greenish, gibbous, 1–2.5 mm;

style head bearded; cleistogamous flowers axillary.
Capsules

ellipsoid, 8–12(–20) mm, glabrous or tomentose.
Seeds

brown, 1.8–3 mm.
2n

= 12.

Viola pubescens
Distribution
from FNA
AL; AR; CT; DC; DE; GA; IA; IL; IN; KS; KY; LA; MA; MD; ME; MI; MN; MO; MS; NC; ND; NE; NH; NJ; NY; OH; OK; PA; RI; SC; SD; TN; TX; VA; VT; WI; WV; WY; MB; NB; NS; ON; PE; QC; SK
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

Viola pubescens is similar in overall appearance to V. glabella.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Stems 1–2, puberulent; basal leaves 0(–1), surfaces usually puberulent.
var. pubescens
1. Stems (2–)3+, glabrous or puberulent; basal leaves 0–4, surfaces glabrous, sometimes sparsely strigose.
var. scabriuscula
Source FNA vol. 6, p. 149.
Parent taxa 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. 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. 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
Subordinate taxa
V. pubescens var. pubescens, V. pubescens var. scabriuscula
Synonyms Crocion pubescens
Name authority Aiton: Hort. Kew. 3: 290. (1789)
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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