Family: Caprifoliaceae
common teasel, wild teasel
[Dipsacus fullonum f. albidus L.]
Stephen L. Solheim
Paul Drobot
Etymology: Dipsacus: from the Greek dipsa, "thirst," from the connate (joined or attached) leaf bases that in some ssp. hold water
Plants: erect, biennial, 2'-7' tall forb; stems prickly
Leaves: stem leaves lance-shaped, up to 12" long, toothless towards the top, bases surround the stem
Flowers: purple to white, 4-parted, with irregular petals; inflorescence a dense, cylindrical cluster on a long, naked stalk, some of the bracts taller than the flower cluster; blooms July-Sept.
Habitat: moist; roadside, disturbed areas
Invasiveness: Restricted Invasive - Eradicate!
Conservation Status: Introduced - naturalized; ecologically invasive
Plants: erect, biennial, 2'-7' tall forb; stems prickly
Leaves: stem leaves lance-shaped, up to 12" long, toothless towards the top, bases surround the stem
Flowers: purple to white, 4-parted, with irregular petals; inflorescence a dense, cylindrical cluster on a long, naked stalk, some of the bracts taller than the flower cluster; blooms July-Sept.
Habitat: moist; roadside, disturbed areas
Invasiveness: Restricted Invasive - Eradicate!
Conservation Status: Introduced - naturalized; ecologically invasive
Floristic Rating: Wetland Indicator = NI WIS DNR-Bureau of Endangered Resources: Detailed information on Wisconsin invasive species including decription, habitats, control methods USDA Plants Database: Federal Distribution and detailed information including photos University of Wisconsin - Green Bay: Invasive Plants: Photos, descriptions, information Dan Tenaglia's The Missouri Flora: Fabulous photographs; detailed descriptions; color and leave arrangement key. David G. Smith's "Delaware Wilflowers": Beautiful photographs; descriptions Southwest School of Botanical Medicine: Britton & Brown Illustrated Flora - 2nd Edition (1913) "An Illustrated Flora of the Northern United States and Canada"
Paul Drobot
Richard Bauer
Botanical Illustration
Botanical Illustration
Botanical Illustration
Botanical Illustration
S. Kelly Kearns
Paul Drobot
Paul Drobot
Merel R. Black
Kurt Stüber