The wings are mostly clear but have a small patch of yellowish to orange clouding at the base of each hindwing. Mature males are brownish black on the face and thorax and have a red abdomen, while immature males have a yellow thorax and a yellowish brown abdomen. Females have a brown thorax and a brownish red abdomen. As its common name implies, the legs of the adults are yellow.
You can see this dragonfly in, and around marshes, ponds and slow-moving streams.