Anemone canadensis L.
Canadian Anemone, Round-leaf Thimbleweed, Canada Anemone, Windflower, Meadow Anemone
Ranunculaceae (Buttercup Family)
Synonym(s): Anemonidium canadense
USDA Symbol: ANCA8
A robust perennial with deeply lobed, basal leaves and an upright, 1 to 2-1/2 ft. stem bearing a single whorl of 3- to 5-parted leaves. A solitary white flower with a golden center springs from the leaf whorl.
Roundleaf Thimbleweed is very adaptable and can become quite aggressive in too favorable conditions. This plant can be aggressive.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Fruit Type: Achene
Size Notes: Up to about 30 inches tall.
Bloom InformationBloom Color: White
Bloom Time: Apr , May , Jun , Jul , Aug
DistributionUSA: CO , CT , IA , IL , IN , KS , KY , MA , MD , ME , MI , MN , MO , MT , ND , NE , NH , NJ , NM , NY , OH , PA , SD , TN , VA , VT , WI , WV , WY
Canada: AB , BC , MB , NB , NL , NS , NT , NU , ON , PE , QC , SK , YT
Native Distribution: E. Que. to B.C., s. to MD, TN, MO & mts. of NM
Native Habitat: Ditches; damp meadows; sandy shores
Growing ConditionsLight Requirement: Part Shade , Shade
Soil Moisture: Moist
Soil pH: Circumneutral (pH 6.8-7.2)
Soil Description: Moderately moist, sandy soils.
Conditions Comments: Canada anemone is very adaptable and can become quite aggressive in too favorable conditions. As clumps become crowded, flowering may decrease. If this occurs, divide the plants in the fall.
BenefitWarning: POISONOUS PARTS: All parts when fresh. Toxic only if eaten in large quantities. Symptoms include inflammation and blistering upon contact with fresh sap and irritation of the mouth, vomiting and diarrhea following ingestion. (Poisonous Plants of N.C.)
Conspicuous Flowers: yes
Value to Beneficial InsectsSupports Conservation Biological Control
This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.
PropagationDescription: May be propagated by root cuttings taken in spring or by division in either fall or early spring. Each piece of rhizome should be several inches long and placed a foot apart at a depth of 1/2 in. Anemone propagated by seed will mature and produce flower
Seed Collection: Gather when mature in summer.
Commercially Avail: yes
Find Seed or Plants
Find seed sources for this species at the Native Seed Network.
National Wetland Indicator Status
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Delaware Nature Society - Hockessin, DE
Natural Biodiversity - Johnstown, PA
Native Seed Network - Corvallis, OR
Mt. Cuba Center - Hockessin, DE
BibliographyBibref 946 - Gardening with Prairie Plants: How to Create Beautiful Native Landscapes (2002) Wasowski, Sally
Bibref 841 - Native Alternatives to Invasive Plants (2006) Burrell, C. C.
Bibref 1294 - The Midwestern Native Garden: Native Alternatives to Nonnative Flowers and Plants An Illustrated Guide (2011) Adelman, Charlotte and Schwartz, Bernard L.
Search More Titles in Bibliography
Web ReferenceWebref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter
Additional resourcesUSDA: Find Anemone canadensis in USDA Plants
FNA: Find Anemone canadensis in the Flora of North America (if available)
Google: Search Google for Anemone canadensis
MetadataRecord Modified: 2022-11-18
Research By: TWC Staff