Viola walteri |
Viola affinis |
|||||
---|---|---|---|---|---|---|
prostrate blue violet |
Le Conte's violet, sand violet, violette affine |
|||||
Habit | Plants perennial, caulescent, stoloniferous, 5–19 cm; stolons green or reddish, leafy, sometimes rooting at nodes, becoming lignified in age. | Plants perennial, acaulescent, not stoloniferous, 5–15 cm; rhizome slender, becoming thick and fleshy with 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. |
basal, 1–6, ascending to erect; stipules lanceolate, margins entire or fimbriate, apex acute; petiole 2–10 cm, glabrous; blade green abaxially, unlobed, narrowly to broadly ovate or narrowly deltate, 1.5–10 × 1.5–10 cm, not fleshy, base cordate to broadly cordate or almost truncate, margins crenate to serrate, ciliate or eciliate, apex acute to obtuse, surfaces sparsely pubescent adaxially, rarely glabrous. |
||||
Peduncles | 5–9.6 cm, glabrous or pubescent. |
3–15 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. |
sepals lanceolate to ovate, margins ciliate or eciliate, auricles 1–2 mm; petals lavender-violet to dull reddish violet on both surfaces, lower 3 white basally and darker violet-veined, lateral 2 bearded, lowest 10–22 mm, usually obviously bearded, rarely beardless, spur white or same color as petals, gibbous, 2–3 mm; style head beardless; cleistogamous flowers from prostrate to ascending peduncles. |
||||
Capsules | ovoid to ellipsoid, 5–7 mm, glabrous. |
often reddish or purplish-flecked or green, ellipsoid, 5–10 mm, glabrous or puberulent. |
||||
Seeds | brown, 1–1.5 mm. |
beige, mottled to bronze, 1.5–2.5 mm. |
||||
2n | = 20. |
= 54. |
||||
Viola walteri |
Viola affinis |
|||||
Phenology | Flowering Apr–Jun. | |||||
Habitat | Open or wooded wet areas, meadows, stream banks, thickets, shores of lakes, seasonally dry areas. | |||||
Elevation | 100–2000 m (300–6600 ft) | |||||
Distribution |
AL; AR; FL; GA; KY; LA; MD; MS; NC; OH; PA; SC; TN; TX; VA; WV
|
CT; DC; DE; IL; IN; MA; MD; MI; MN; NH; NJ; NY; OH; PA; RI; VA; VT; WI; WV; ON; QC |
||||
Discussion | Varieties 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
L. E. McKinney (1992) considered Viola affinis, and much of what botanists had called V. nephrophylla, to be essentially the same taxon. After studying additional specimens, reviewing literature (H. E. Ballard 1994; A. Haines 2001b), and discussions with others (J. Cayouette, H. E. Ballard, A. Haines, pers. comm.), he chose to maintain these as separate taxa. Reports of V. affinis in the Gulf coastal states based on specimens or photographs are usually attributable to V. missouriensis. Viola affinis reportedly hybridizes with V. hirsutula (= V. ×consobrina House), V. cucullata (= V. ×consocia House), V. brittoniana (= V. ×davisii House), V. sororia (= V. ×filicetorum Greene [as species]), V. sagittata var. sagittata (= V. ×hollickii House), and V. nephrophylla (= V. ×subaffinis House). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
||||
Key |
|
|||||
Source | FNA vol. 6, p. 163. | FNA vol. 6, p. 120. | ||||
Parent taxa | Violaceae > Viola | Violaceae > Viola | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | V. affinis var. subarctica, V. crenulata, V. sororia subsp. affinis, V. sororia var. affinis, V. subviscosa, V. venustula | |||||
Name authority | House: Torreya 6: 172. (1906) | Leconte: Ann. Lyceum Nat. Hist. New York 2: 138. (1826) | ||||
Web links |