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47b. Viola praemorsa Douglas ex Lindley var. flavovirens (Pollard) R. J. Little, J. Bot. Res. Inst. Texas. 4: 225. 2010.
[E]
Viola flavovirens Pollard, Bull. Torrey Bot. Club 24: 405. 1897; V. praemorsa subsp. flavovirens (Pollard) Fabijan
Plants (11–)14–36.5 cm. Leaves: basal: petiole (5–)7.5–19 cm; blade usually elliptic to ovate, sometimes oblong-lanceolate, (3.4–)5.3–17 × 1.1–6.7 cm, length 1.8–6.5 times width, base attenuate, margins crenate, serrate, or serrulate; cauline similar to basal except: petiole 1.3–16.2 cm; blade 3–11(–14.8) × 1.4–3.6(–5.5) cm. Peduncles 5.9–27 cm. Lowest petal 11–15(–19) mm. Capsules 6–14 mm. Seeds medium brown. 2n = 36, 48.
Flowering Apr–Jun. Vernally moist slopes and banks, grassy areas, rocky stream banks; 500–1600 m; Idaho, Mont., Utah, Wash., Wyo.
Populations of var. flavovirens in Idaho County, Idaho, have cauline leaves longer (14.8 versus 8 cm) and wider (5.5 versus 3.1 cm) than the maximum lengths and widths cited by D. M. Fabijan et al. (1987).
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