Northern Ontario Plant Database
Anemone canadensis L.
En: Canada anemone, meadow anemone, roundleaf thimbleweed, Canada windflower
Ranunculaceae (Buttercup or crowfoot Family)
General: A perennial forb, to 80 cm tall, growing from a slender rhizome.
Leaves: Basal and cauline, orbicular in general outline, to 15 cm wide, blades deeply cleft into 3–7 segments. Basal leaves 1-5, long petiolate; cauline leaf single, sessile, divided into 3 main segments, each of which is divided into 3 oblanceolate lobes; bases of leaf segments cuneate, apices of lobes acuminate, lobe margins entire towards the base, coarsely serrate towards the tip.
Flowers: 1–3, usually solitary; to 4 cm wide, on long erect stalks (peduncles); tepals 5, white, obovate, to 2.5 cm long and 1.5 cm wide; stamens many; pistils many, distinct (apocarpous), ovule 1 per pistil. Flowering May to July.
Fruit: A spherical aggregate of beaked achenes; obovate to ellipsoid, to 6 mm long and 6 mm wide.
Habitat and Range: Moist meadows, damp thickets, streamsides, and lakeshores. Native to eastern North America. Canada anemone is a good indicator of basic or calcareous substrates.
– written by Derek Goertz
Back to species list