This widespread eastern species is sometimes confused with verna, but it differs in several characters (W): fruiting pedicels divergent (versus more or less erect); fruiting calyx deciduous, 3-10 mm long (versus persistent, 3-5.5 mm); inflorescence internodes mostly ca. 1-2 cm long (versus 0.5-1 cm); mericarps 1.4-2.2 mm long (versus 1.2-1.5 mm). Its habitat is usually submesic woodland (versus drier open woods and fields). There is no evidence of intergradation (Y).