Robert W. Freckmann Herbarium


Because of technology changes and personnel changes at UWSP and the Wisconsin State Herbarium, the database of plant species housed at this site was merged with the database from the OLD WisFlora website to create a new Flora of Wisconsin website at Currently we are encouraging all Wisplant viewers to begin using the Flora of Wisconsin website as soon as possible. Wisplants will remain operational through July 13th. After that date, all traffic to Wisplants will be redirected to the Flora of Wisconsin website.

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  Linaria canadensis (L.) Dum.Cours. var. canadensis image
Photographer: Stephen L. Solheim           

Caroline A. Creevey

Corey Raimond

Emmet J. Judziewicz

Stephen L. Solheim
Family Scrophulariaceae
Linaria canadensis (L.) Dum.Cours. var. canadensis
annual toadflax, blue toadflax, Canada toadflax
Linaria: from the Latin linum, "flax," referring to the flax-like leaves of some species
canadensis: of or referring to Canada
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: erect, annual, 4"-20" tall forb, mostly smooth, slender; stems form a short, drooping, basal rosette with erect tips; short taproot
Flower: light blue to white, 5-parted, 3/8" long, very irregularly-shaped, slender spur at the base; erect upper lip with 2 lobes, lower lip 3 lobed with 2 short white ridges, 4 stamens; inflorescence a cluster (raceme) of stalked flowers at the top of the stem; blooms May-July
Leaf:mostly opposite and broader on the side stems, mostly alternate and narrower on the main stem
Habitat: dry; in sandy soil

More Information Natural Communities Herbarium Specimens
All Linaria list Google- Images or Text
Antirrhinum canadense L.
Nuttallanthus canadensis (L.) D.A.Sutton

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