Virginia Buttonweed (Diodia virginiana)

Annual with branched and spreading stems, 8-32" long, hairy along the stem. Leaves opposite, thin, narrowly elliptic, 1-2" long with linear stipules to 0.2" long. Flowers are trumpet-shaped, white and 0.4" wide, 4 narrow spreading lobes, narrow tube about 0.4" long, calyx has 2 linear sepals, style has 2 thread-like stigmas, flowers usually solitary from the leaf axils. Bloom time June-August found on wet ground ditches, and shorelines. This plant can become a troublesome weed as it forms dense mats on low, damp grounds.