Thalictrum dasycarpum, known as tall meadow rue[2] and purple meadow-rue,[3] is a species of flowering plant in the buttercup family, Ranunculaceae.

Each flowerhead comprises many flowers, borne in panicles, and is roughly pyramid in outline.

It is usually dioecious, producing male and female flowers on separate plants.

[5] Tall meadow rue has a broad distribution across central North America: north to Yukon, west to Idaho, south to Texas, and east to New York state.

[4] It is found in a variety of wetland habitats, from swamps and wet meadows to prairies, as well as riparian woodlands.