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.

Please direct any comments to

Thank you.

  Hieracium kalmii L. image
Photographer: Steve C. Garske           

Emmet J. Judziewicz

Emmet J. Judziewicz

Emmet J. Judziewicz

Merel R. Black

Merel R. Black
Family Asteraceae
Hieracium kalmii L.
Canada hawkweed, Kalm's hawkweed
Hieracium: classical name hierakion from ancient Greek hierax, "a hawk". The Roman naturalist Pliny believed that hawks fed on this plant to strengthen their eyesight and thus it became the Greek and Latin name for this and similar plants, called hawkweed.
kalmii: for Pehr Kalm (1715-1779)
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: erect, perennial, 1/2'-5' tall forb with milky juice; stems leafy, lower part usually with long hairs, upper only softly fuzzy; roots not forming mats
Flower: head 5/8"- 1" wide with yellow rays; inflorescence of several, long-stalked heads in loose, branched clusters; blooms July-Oct.
Leaf:alternate, lower ones deciduous, remaining ones mostly about the same size with a few sharp, irregularly spaced teeth or lobes, rounded bases sometimes slightly clasping the stem, usually with long hairs beneath but the edges never rough
Habitat: dry; woods, forests, prairies, cliffs; in sandy soil
Notes: very similar to H. umbellatum except for the leaf edges

More Information Natural Communities Herbarium Specimens
All Hieracium list Ethnobotany Information Google- Images or Text

Flora of North America (off site)
Hieracium canadense Michx.
Hieracium canadense Michx. var. canadense
Hieracium canadense Michx. var. fasciculatum (Pursh) Fernald
Hieracium columbianum Rydb.
Hieracium kalmii L. var. fasciculatum (Pursh) Lepage
Hieracium kalmii L. var. kalmii
Hieracium kalmii L. var. subintegrum (Lepage) Lepage
Hieracium scabriusculum Schwein. var. columbianum (Rydb.) Lepage
Hieracium umbellatum L. var. canadense (Michx.) Breitung
Hieracium umbellatum L. var. scabriusculum Farw.

Botany News/Events
Book We Recommend
Historical Botanists
Other Links
Botanical Club of Wisconsin (off site)
UW-Stevens Point Biology Dept.
Plants of Wisconsin
Vascular Plants
Natural Communities
Botany News/Events
Other Links
Lichens (off site)   
Tom Volk's Fungi (off site)
Taxonomy of Vascular Plants
                          Vascular Plants
Browse by Identification Guides
Family Wildflowers
Genus Trees
Common Names Shrubs
Search by Vines
Names Aquatic-Semi aquatic
Specimens Ferns - Fern Allies
Blooming Times Grasses, Sedges, or Rushes
County & Status Other Resources  
Town Range Taxonomy of Vascular Plants
  WI Checklist & CofC Values
Browse by:
Common Name
Search by:
Copyright 2012 Permissions Contact Us Web Map