It has been found in every state and province from Texas to Manitoba to Newfoundland to Florida, plus Colorado and Oregon.

[2] It also grows in China, the Russian Far East, Siberia, Korea, Japan, northern India and Mongolia.

[3][4] Persicaria sagittata is an annual herb up to 200 cm (80 inches) tall, with prickles along the stem.

Leaves are up to 10 cm (4 inches) long, heart-shaped or arrowhead-shaped (unusual for the genus).

Flowers are white to pink, borne in spherical to elongated clusters up to 15 mm (0.6 inches) long.