Appearance Ficaria verna is a short (up to 12 in. [30.5 cm]), herbaceous perennial that invades forests throughout the East, Midwest and Pacific Northwest regions of the United States. Foliage The basal leaves are dark green, shiny, kidney- to heart-shaped and vary greatly in size. Flowers Flowering occurs in March and April, when showy, bright yellow, eight-petaled flowers develop on stalks above the leaves. Flowers are up to 3 in. (7.6 cm) wide. Fruit The fruit are achenes that are pubescent. It also reproduces with bulblets and tubers. Ecological Threat Ficaria verna invades moist, forested floodplains. It is a spring ephemeral and grows vigorously, creating dense mats that exclude all other vegetation. It is a threat particularly to the native forest spring ephemerals that have to compete for light and space with this invasive. The plant is native to Europe and was first introduced into the United States as an ornamental. It is currently sold and widely planted as an ornamental.