About Thalictrum dasycarpum Fisch., C.A.Mey. & Avé-Lall.
Thalictrum dasycarpum Fisch., C.A.Mey. & Avé-Lall., commonly called tall meadow rue, is an herbaceous flowering plant with an erect growth habit, reaching 40 to 200 centimeters (16 to 79 inches) tall. Its leaves are compound, typically bearing 3 leaflets, though they occasionally have 5. Each leaflet is shallowly lobed, with 2 to 5 lobes, and has otherwise smooth leaf margins. The leaves are somewhat leathery with prominent veins. The underside of the leaf is usually covered in fine hairs, but is occasionally hairless. Flowerheads are made up of many small flowers arranged in panicles, and have a roughly pyramid-shaped overall outline. This species is usually dioecious, meaning it produces male and female flowers on separate individual plants. The small flowers measure 7 millimeters (0.28 inches) across. They do not have petals, but do have 4 to 6 deciduous greenish-white sepals. Tall meadow rue flowers between late April and late July. This species has a broad distribution across central North America, ranging north to Yukon, west to Idaho, south to Texas, and east to New York state. It grows in a wide variety of wetland habitats, including swamps, wet meadows, prairies, and riparian woodlands.
