Viola L.

Lowest petal scarcely longer than the others Viola
Stipules large to 4 cm long, green, deeply lobed. Petals 5–10 mm long, white to partially mauve, yellow to orange at base. Lower petal broadly cuneate. Leaves ovate to elliptic 10–35 mm long, tapering at base; margins toothed to crenate. Annual or biennial herb. Naturalized on ranges. Introd. from Europe, Africa, Asia. Fl. summer. Field Pansy Viola arvensis
Stipules small, translucent. Lower petal not broadly cuneate