Viola cuneata |
Viola bakeri |
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northern two-eyed or wedge-leaf violet, northern two-eyed violet, wedge-leaf violet |
Baker's violet, yellow prairie violet |
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Habit | Plants perennial, caulescent, not stoloniferous, 2–25 cm. | Plants perennial, caulescent, not stoloniferous, 3–30 cm. |
Stems | 1–3, usually erect, sometimes prostrate or ascending, glabrous, from shallow, fleshy rhizome or deep-seated caudex with fleshy roots. |
1–4, usually erect, sometimes prostrate or decumbent, leafy proximally and distally, usually puberulent, from usually vertical, subligneous rhizome. |
Leaves | basal and cauline; basal: 2–6; stipules lanceolate, margins entire or gland-toothed, apex acute; petiole 4.5–9.8 cm, glabrous; blade purple-veined, orbiculate-ovate to deltate, 1–4 × 2.7–3.8 cm, usually shiny, leathery, base cuneate, margins serrate, eciliate, apex acute, mucronulate, surfaces glabrous; cauline similar to basal except: stipules lanceolate to ovate, margins entire or erose to lacerate, with or without gland-tipped processes, apex acute to acuminate; petiole 0.5–20 cm; blade usually rhombic, sometimes orbiculate, 0.9–2.6 × 0.7–1.8 cm, margins crenate to ± serrate, apex acute to obtuse. |
basal and cauline; basal: 1–4; stipules adnate to petiole, forming 2 linear-lanceolate wings, margins entire, apex of each wing free, acute to acuminate; petiole 1–15.4 cm, glabrous or puberulent; blade lanceolate, oblanceolate, or elliptic, rarely ovate, 1.8–8.8 × 0.7–3.9 cm, thin, base attenuate, often oblique, margins usually entire, sometimes with a few sharp teeth or crenulate, ciliate, apex acute to obtuse, mucronulate, surfaces glabrous or puberulent on margins or veins; cauline similar to basal except: stipules ovate to lanceolate, margins entire or lacerate, sometimes with glandular projections, apex with 2–3 projections; petiole 1.5–7.5 cm; blade 1.9–6.7 × 0.5–1.6 cm. |
Peduncles | 1–10.5 cm, glabrous. |
1.5–11.6 cm, glabrous or pubescent. |
Flowers | sepals lanceolate, margins eciliate, auricles 0.5–1 mm; petals deep reddish violet abaxially, white adaxially, upper 2 sometimes with purple patch basally, lateral 2 with purple patch basally beyond smaller yellow area, usually bearded, sometimes beardless, lowest purple-veined with yellow area basally, 8–14 mm, spur yellow, gibbous, 1–2 mm; style head bearded; cleistogamous flowers axillary. |
sepals lanceolate, margins eciliate, auricles 0.5–1 mm; petals deep lemon-yellow adaxially, upper 2 often brownish purple abaxially, lower 3 dark brown- to brownish purple-veined, lateral 2 sparsely bearded, lowest 6–14 mm, spur yellow, gibbous, 1–2 mm; style head bearded; cleistogamous flowers axillary. |
Capsules | ± spherical, 5–9 mm, glabrous. |
spherical to ovoid, 5–10 mm, usually glabrous, rarely finely puberulent. |
Seeds | deep brown-purple, 2.1–3 mm. |
light to medium brown or dark red-brown, 2.6–3.1 mm, elaiosome not covering funiculus. |
2n | = 48. |
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Viola cuneata |
Viola bakeri |
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Phenology | Flowering Mar–Sep. | Flowering May–Jul. |
Habitat | Open pine or oak forests, often serpentine soil | Wet and dry places in openings of coniferous forests |
Elevation | 600–2200 m (2000–7200 ft) | 900–3800 m (3000–12500 ft) |
Distribution |
CA; OR
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CA; NV; OR; WA
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Discussion | Viola cuneata often occurs on serpentine-derived soil and is closely related to V. flettii, V. hallii, and V. ocellata (V. B. Baird 1942). Originally described as beardless by Watson, the lateral petals of flowers in the same population can be prominently bearded or essentially beardless. The cauline blades of Viola cuneata are often vertical, especially early in season. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
M. S. Baker (1957) wrote that Viola bakeri flowers were often without a brownish tinge on the back. Subsequent collections have shown that the upper two petals of V. bakeri are often brownish purple abaxially and thus this characteristic cannot be used to distinguish V. bakeri from V. praemorsa, as previously done (P. A. Munz 1959; C. L. Hitchcock et al. 1955–1969, vol. 3). Greene wrote in his description of Viola bakeri that the whole plant was glabrous; he did not mention leaf margins. M. S. Baker (1957) examined the type specimen at UC and apparently was the first to document that its leaf margins are entire. He also noted that under magnification the leaves are ciliate and more or less puberulent. D. M. Fabijan et al. (1987) stated that margins were always entire and ciliate and more or less pubescent throughout. Some collections of V. bakeri from California have leaves with a sharp point or two on the margin, or crenulations on some portion of the basal or cauline blade margins. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 6, p. 129. | FNA vol. 6, p. 121. |
Parent taxa | Violaceae > Viola | Violaceae > Viola |
Sibling taxa | ||
Synonyms | V. bakeri subsp. shastensis, V. nuttallii var. bakeri | |
Name authority | S. Watson: Proc. Amer. Acad. Arts 14: 290. (1879) | Greene: Pittonia 3: 307. (1898) |
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