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goosefoot yellow violet, mountain yellow violet, pine violet

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

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

Peduncles

2.9–11.5 cm, puberulent or canescent.

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.

Capsules

ovoid, 3.5–7 mm, puberulent.

Seeds

medium to dark brown, 2–3.5 mm.

2n

= 12.

Viola pinetorum

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.)

Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
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. 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
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.V. pinetorum 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.V. pinetorum var. grisea
Synonyms V. purpurea var. pinetorum
Name authority Greene: Pittonia 2: 14. (1889)
Source Flora of North America vol. 6, p. 144.
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