Smallflower Buttercup

Scientific Name - Ranunculus abortivus L.
Family - Ranunculaceae

Winter annual with erect almost hairless stems and leaves. Basal leaves heart-shaped, long petiole, margins serrated. Stem leaves on shorter petioles and divided into three-lobed segments. Yellow flowers singly on stem at leaf axils. Seeds in tight round cluster. Seed round, flattened, with short slightly curved to straight beak. Reproduces by seed. Found in the continental United States and Alaska, except for the Southwest states. Also found throughout Canada.