Viola bicolor Pursh
Family - Violaceae
Stems - To 20cm tall, herbaceous, angled, glabrous or pubescent, from single taproot.
Leaves - Alternate, spatulate, glabrous, +2cm long, +5mm broad, entire to (few)coarsely toothed. Stipules deeply divided (palmately lobed), (divisions linear to oblong), glabrous, +1.5cm long, +1cm broad.
Lower and upper leaf respectively.
Inflorescence - Single flowers from leaf axils. Peduncles typically exceeding leaves, glabrous, curved downward at apex, to +4cm long, with two minute(-1mm) bracts near base of curve.
Flowers - Corolla zygomorphic, +/-1.5cm broad. Petals 5, distinct, typically bluish to whitish with purple lines. Lower petal with yellowish base near "throat" of corolla. Lateral petals bearded. Stamens 5. Stigma globose. Sepals 5, subulate to oblong-lanceolate, +/-5mm long, glabrous, with basal spur to +1.5mm long. Margins of sepals slightly darker green than rest of sepal.
Flowering - March - May.
Habitat - Fields, waste ground, disturbed sites, meadows, roadsides, railroads.
Origin - Native to U.S., probably.
Other info. - This is a tiny Viola which is quite abundant in the spring
months. The corolla is variable in color but is typically as described above.
Photographs taken in Vale, NC., 3-9-03 (DETenaglia); also at Pickle Springs, St. Genevieve County, MO, 4-26-2014, and near Labadie, Franklin County, MO, 3-28-2018 (SRTurner).