About Viola hallii A.Gray
Viola hallii A.Gray is a rhizomatous herb that grows a cluster of hairless stems, reaching a maximum height of around 22 centimeters. Each of its leaves is divided into three fleshy leaflets, which are deeply split into lance-shaped lobes. The leaves are borne on short petioles, and are very similar in appearance to the leaves of Viola beckwithii. A single solitary flower grows on a long, upright stem. The flower has five petals: the lower three petals are cream-colored with yellow bases and red veining, while the upper two are typically dark red or purplish. In populations found in the Douglas County area of southwestern Oregon, the two upper petals are not solid purple. In Viola hallii, the two upper petals may have white fronts and dark purple backs.
