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.

  Lysimachia thyrsiflora L. image
Photographer: Christopher Noll           

Botanical Illustration

Kenneth J. Sytsma

Kenneth J. Sytsma

Kenneth J. Sytsma

Merel R. Black

Merel R. Black
Family Primulaceae
Lysimachia thyrsiflora L.
swamp loosestrife, tufted loosestrife
Lysimachia: probably for Greek king Lysimachus or maybe from Greek lysis for "a release from" and mache for "fighting or strife"
thyrsiflora: flowers in a thyrse (stalks multiply branched)
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: erect, perennial, 1' -2 1/2' tall forb; roots long, creeping on or near the surface of the ground
Flower: yellow, 6-parted, 1/3" wide, petals linear with black marks, separate stamens nearly twice as long as the petals; inflorescence a few, 1/3"-1 1/4" tall, dense, short, rounded clusters (racemes) on stalks spreading from the middle leaf axils; blooms May-July
Leaf:narrowly lance-like to linear, dotted
Habitat: wet; bogs, marshes, shallows

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

Flora of North America (off site)
Naumburgia thyrsiflora (L.) Rchb.

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