Robert W. Freckmann Herbarium


  Iva xanthifolia Nutt. image
Photographer: Emmet J. Judziewicz           

Botancial Illustration

Botancial Illustration

Gary Fewless

Gary Fewless
Family Asteraceae
Iva xanthifolia Nutt.
bur-weed marsh-elder, giant sump-weed
Iva: a Latin derivation from the mint Ajuga iva, which has a similar aroma
xanthifolia: xanthos for "yellow;" folius for "leaves"
Hazardous hazard symbol- click for definition
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Native
Plant: erect, annual, 1 1/2'- 6' tall, unbranched, coarse forb; stems smooth toward the bottom
Flower: head green to cream, no rays, no bracts; inflorescence with many, mostly stalkless heads in 10" long, large, branched clusters; blooms Aug.-Oct.
Leaf:mostly opposite, upper might become alternate; long-stalked, very widely oval, doubly toothed, roughly hairy on the top, softly fuzzy and light green on the bottom
Habitat: moist; shores, disturbed sites
(Glossary)

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

Flora of North America (off site)
Synonyms 
Cyclachaena xanthifolia (Nutt.) Fresen.

         
  Home
Faculty
Botany News/Events
Projects
Book We Recommend
Historical Botanists
Other Links
Botanical Club of Wisconsin (off site)
UW-Stevens Point Biology Dept.
 
Plants of Wisconsin
Vascular Plants
Bryophytes
Ethnobotany
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
Bryophytes
Browse by:
Common Name
Genus
Search by:
County
 Name
Copyright 2012 Permissions Contact Us Web Map