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Thalictrum dioicum

Early Meadow Rue is a graceful spring-blooming perennial with long-stalked leaves divided into many delicate, lobed segments. This plant is dioecious, with separate male and female flower. Petal-less male flowers have yellow stamens that hang like small tassels. The female tassel-like blossoms are purple and appear on separate plants. Found in cool and moist forests, especially close to seepages and small creeks. Blooms quite early, generally only in March and April, rarely into May, which accounts for its common name. The delicate blossoms of this species are extremely attractive, but the plant is grown mostly for its fine-textured foliage. This is a shorter Thalictrum species than the other erect ones.

Key Info

Scientific Name: Thalictrum dioicum L.
Common Names: Early Meadow Rue
Family Names:
Protected Plant Species: No
Light Requirement: ,
Moisture Requirement: ,
Leaf Retention:
Bloom Times: , ,
Flower Color: Male: White, Yellow, Green, Female: Purple

Additional Info

Height: 1-3'
Soil Conditions: Rich, mesic soils
Leaves: Basal and stem leavers are doubly-ternately divided (3 sets of 3 leaflets per leaf). Each leaflet is about 1-1.5 inches long and wide, with three main lobes (the middle largest) that tend to have extra teeth on them as opposed to being smoothly rounded. Each leaf has a long petiole, often 2 inches long, including the leaf just below the base of the inflorescence.
Flowers (or reproductive structures: Dioecious (male flowers on some plants and female flowers on others). Male flowers have white, drooping, needle-like filaments and yellow anthers that add a bit of color. Open panicle of flowers, widely scattered and quite small, with no petals and sepals that drop early.
Fruit: Fruits shortly after flowering, around May
USDA Wetland Indicator Status in NC: FAC
Propagation: Seed