Thalictrum dasycarpum

Thalictrum dasycarpum, known as tall meadow rue[2] and purple meadow-rue,[3] is a species of flowering plant in the buttercup family, Ranunculaceae. It is native to North America.[4]

Thalictrum dasycarpum
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Ranunculales
Family: Ranunculaceae
Genus: Thalictrum
Species:
T. dasycarpum
Binomial name
Thalictrum dasycarpum

Description

Tall meadow rue is an herbaceous flowering plant with an erect habit, growing between 40–200 centimeters (16–79 in) tall.[4] The leaves are compound, usually with 3 leaflets, though occasionally 5. Each leaflet is shallowly lobed with between 2 and 5 lobes, with otherwise smooth margins.[4] The leaves are somewhat leathery with prominent veins. The leaf underside is usually pubescent, but occasionally hairless.

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.[2] The small flowers—7 millimeters (0.28 in) across—lack petals but do have between 4 and 6 greenish-white sepals that are deciduous. Tall meadow rue produces flowers between late April and late July.[5]

Distribution and habitat

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.[6][4]

  • Leaves
  • Female flowers
  • Male flowers

References
  1. "Thalictrum dasycarpum". ipni.org. International Plant Names Index. Retrieved 2018-09-29.
  2. "Thalictrum dasycarpum (Tall Meadow Rue)". www.minnesotawildflowers.info. Retrieved 2018-09-29.
  3. "Thalictrum dasycarpum". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 2018-09-29.
  4. Flora of North America Editorial Committee, ed. (1997). "Thalictrum dasycarpum". Flora of North America North of Mexico (FNA). 3. New York and Oxford. Retrieved 2018-09-29 – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  5. "Thalictrum dasycarpum (Tall Meadow Rue): Plant Phenology". iNaturalist.org. Retrieved 2018-09-29.
  6. "National Wetland Plant List - Species Detail Tool". wetland-plants.usace.army.mil. U.S. Army Corps of Engineers. Retrieved 2018-09-29.
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