Polygonum sagittatum or The Arrow Leaved Tear Thumb does not stand on its own. It usually inclines on other plants for support. It has some recurved, sharp prickles on its stem. The prickles help it in climbing over the other plants. Prickles are also present on the leaves and the petioles. It flowers from July to September. It is found all over from Nova Scotia to the Gulf in the west. It has small flowers which are greenish white or rose colored. The leaves are shaped like a combination of the arrow and the lance. In the autumn the leaves acquire a tan red tint. The stem is four angled.

Knot grass, Seaside is common names for Polygonella articulate. It is a lean and slender plant which flowers from July to October. It is found on the coasts of Maine, Florida. The small flowers are rose tinted white colored. They add a dash of pink on the sandy meadows and the upper beaches. This scenario has always fascinated the artists who have transferred it to their canvas. The leaves are thread like and the stem is jointed. The flower has 5 segments in the calyx and there's a dark midrib in each of the segment.

Corn Cockle or Corn Rose is known for producing purplish crimson or magenta colored flowers. The flowers are up to three inches in width. Scientifically the plant is named Agrostemma Githago. The plant grows can be up to three feet tall and has a thick, stout stem. Its numerous leaves are pointed, long and narrow. Fine white colored hairs are present all over the leaves. It flowers from July to September. It can be found almost everywhere. It is found in western and central states, Asia and Europe. It thrives well in grain fields especially wheat field. The plant does not branch much. It is also known as Red Campion or Crown of the Field. The flower reproduces easily by attracting moths, bees and butterflies. However you must be careful while handling its seeds, they can make you ill.