Sanguisorba occidentalis Sanguisorba annua is a species of flowering plant in the rose family known by the common names annual burnet and prairie burnet.

It is native to North America, including many areas in western and central Canada and the United States.

It can be found in several types of habitat, including grassland, sagebrush, and disturbed areas.

It is an annual or biennial herb producing a leafy, mostly erect stem up to about 90 centimeters in maximum height.

The inflorescence is a spikelike dense cluster of up to 50 flowers held erect on a tall, naked peduncle.