The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

goosefoot yellow violet, mountain yellow violet, pine violet

halberd-leaf or halberdleaf yellow violet, halberdleaf yellow violet

Habit Plants perennial, caulescent, not stoloniferous, 3–18 cm, cespitose or not. Plants perennial, caulescent, not stoloniferous, 5–30 cm.
Stems

1–3, prostrate or erect, leafy proximally and distally, puberulent or canescent to gray-tomentose, sometimes glabrous, on caudex from subligneous rhizome.

1(–2), erect, leafless proximally, leafy distally, glabrous or sparsely puberulent, from fleshy rhizome.

Leaves

basal and cauline;

basal: 1–4;

stipules adnate to petiole forming 2 linear-lanceolate wings, margins entire or laciniate, apex of each wing free, tips usually filamentous;

petiole 2.3–9.5 cm, puberulent or canescent;

blade purple-tinted abaxially or not, usually linear to narrowly lanceolate, oblanceolate or obovate, or lanceolate-elliptic, rarely ovate, 1.3–5 × 0.3–2.5 cm, base attenuate, margins usually lacerate, dentate, or serrate, sometimes entire, usually undulate, ciliate, apex acute, mucronulate, surfaces puberulent to canescent or gray-tomentose;

cauline similar to basal except: stipules lanceolate, oblanceolate, or linear-oblong, margins entire or lacerate, apex acute to acuminate;

petiole 0.9–8.3 cm;

blade 2.8–9.6 × 0.3–1.4 cm, length 4–11 times width.

basal and cauline;

basal: 0–1;

stipules ovate to lanceolate, margins laciniate with gland-tipped projections, apex usually acuminate;

petiole 3–11.5 cm, usually glabrous;

blade sometimes gray-green abaxially, usually mottled light green adaxially, widely or narrowly hastate to ovate, 2.5–4.4 × 1.8–3.2 cm, base hastate to cordate or truncate, margins serrate or crenate, ciliate or eciliate, apex acute, surfaces usually glabrous, sometimes scabrous;

cauline similar to basal except: leaves usually restricted to distal ends of naked stems;

petiole 1–2.5 cm;

blade 2–10 × 1.1–4.5 cm.

Peduncles

2.9–11.5 cm, puberulent or canescent.

1–5.3 cm, usually glabrous.

Flowers

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

petals deep lemon-yellow adaxially, upper 2 red- to purple-brown abaxially, lower 3 dark brown-veined, lateral 2 bearded, lowest 5–12 mm, spur color same as petals, gibbous, 1.5–3 mm;

style head bearded; cleistogamous flowers axillary.

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

petals lemon-yellow usually on both surfaces, lower 3 and sometimes upper 2 brownish purple-veined, lateral 2 bearded, lowest 9.5–12 mm, spur yellow to greenish, gibbous, 0.5–2 mm;

style head bearded; cleistogamous flowers axillary.

Capsules

ovoid, 3.5–7 mm, puberulent.

ovoid to ellipsoid, 6–8 mm, glabrous.

Seeds

medium to dark brown, 2–3.5 mm.

beige to bronze, 2–2.5 mm.

2n

= 12.

= 12.

Viola pinetorum

Viola hastata

Phenology Flowering late Mar–May.
Habitat Rich woods, chiefly mountains and piedmont
Elevation 50–2000 m (200–6600 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
AL; GA; KY; MD; NC; NY; OH; PA; SC; TN; VA; WV
[WildflowerSearch map]
[BONAP county map]
Discussion

Flowers of Viola pinetorum have been observed to close up in late afternoon then fully reopen the following morning.

Although E. O. Wooton and P. C. Standley (1915) reported Viola pinetorum from New Mexico, the plant was probably V. nuttallii. K. W. Allred (2008) noted that V. pinetorum occurs in California; he did not recognize it in New Mexico.

Varieties 2 (2 in the flora).

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

V. B. Baird (1942) commented that Viola hastata is more closely related to V. glabella than to any eastern species.

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

Key
1. Plants 6.5–18 cm, not cespitose; basal leaf blades 0.7–2.5 cm wide, surfaces puberulent; peduncles 3.4–11.5 cm.
var. pinetorum
1. Plants 3–7(–9) cm, usually cespitose; basal leaf blades 0.3–1 cm wide, surfaces canescent, sometimes appearing gray-tomentose; peduncles 2.9–6(–7) cm.
var. grisea
Source FNA vol. 6, p. 144. FNA vol. 6, p. 133.
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. 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. 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. 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
Subordinate taxa
V. pinetorum var. grisea, V. pinetorum var. pinetorum
Synonyms V. purpurea var. pinetorum
Name authority Greene: Pittonia 2: 14. (1889) Michaux: Fl. Bor.-Amer. 2: 149. (1803)
Web links