ILLINOIS PLANT INFORMATION NETWORK
 
 ILPIN INFORMATION ON    Artemisia biennis
 
 
 CLASS:    DICOTYLEDENAE
 ORDER:    ASTERALES
 FAMILY:   ASTERACEAE
 SCIENTIFIC NAME:  Artemisia biennis
 AUTHORITY:  Willd.
 
 COMMON NAMES:
    BIENNIAL WORMWOOD
 
 SYNONOMY:   None
 
 PLANTS CODE: AREI2
 
 NATURAL COMMUNITIES:
     WETLAND
       BORDER OF LAKE
     CULTURAL
       DEVELOPED LAND
 
 
 SAF FOREST COVER TYPE:
     NO
 
 NATURAL DIVISION:  UNAVAILABLE
 
 COUNTIES:
   ADAMS           BOONE           CHAMPAIGN       COOK            DEKALB
   DUPAGE          HANCOCK         HENDERSON       JACKSON         JO DAVIESS
   KANE            LAKE            LAWRENCE        LEE             MCHENRY
   MACOUPIN        OGLE            PEORIA          PIATT           ST. CLAIR
   SCHUYLER        STARK           TAZEWELL        UNION           WABASH
   WILL            WINNEBAGO
 
 GROWTH FORM:  Dicot-herb
 
 TAXONOMIC CHARACTERISTICS:
    LEAF ARRANGEMENT:   Alternate
    LEAF TYPE:   Simple
    LEAF MARGIN:   Serrate   Lobed  (pinnately)
    LEAF VENATION:  Pinnate
    LEAF SHAPE:     Linear   Oblong   Lanceolate   Ovate
    INFLORESCENCE:   Head
    FLOWER STRUCTURE:   Complete   Incomplete   Regular
    FLOWER PLACEMENT:  Epigynous
    FRUIT:   Achene
 
 DISTINGUISHING CHARACTERISTIC COMMENTS:
     Leaves are green; glabrous, greatly dissected (50+ divisions
     per leaf); nearly odorless when bruised.
 
 GEOGRAPHIC INFORMATION:
     ORIGIN:   Introduced-  N. America
 
 GEOGRAPHIC COMMENTS:
     Species was introduced from northwest U.S.A.
 
 POPULATION DYNAMICS:
     STATE STATUS: Not listed
     FEDERAL STATUS: Not listed
     COMMONNESS:  Occasional
     ENDEMIC:   NOT-ENDEMIC
 
 BIOLOGIC:
     HABIT:   Forb
     LIFE CYCLE:   Biennial   Annual
     REPRODUCTION:   Sexual
     FLOWERING PERIOD:
         MONTH BEGINNING-      8         MONTH END-     10
     TROPHIC STATUS:  Autotrophic
     C02 FIXATION:  C3
     SEX:      Perfect     Unisexual   -monoecious
 
 BIOLOGIC COMMENTS:
     Flowers are all fertile; the outer are pistillate.
 
 ECODISTRIBUTION COMMENTS:
     Species is distributed in gravel bars of streams, along railroads,
     an uncommon weed in waste ground, and flood plains.
 
 ENVIRONMENTAL RELATIONSHIPS:   No data entered
 
 FUNCTIONAL RELATIONSHIPS:
     MAJOR POLLINATION AGENT:   Wind
 
 HUMAN RELATIONSHIP DATA:
     ALLERGENIC:  Yes
     EDIBLE:  Yes
 
 
 HUMAN FACTOR COMMENTS:
     In northwestern USA and other places where locally abundant, it may be a cause
     of hayfever. It is anthelmintic.
 
 WILDLIFE AND LIVESTOCK INFORMATION:   No data entered
 
 REVEGETATION PLANTINGS:
     WEEDINESS:   COLONIZING
 
 
 
 REFERENCES:
Mohlenbrock, R. H., ed.  1975.  Guide to the vascular flora of Illinois.
     Southern Illinois University Press, Carbondale.  494 pp.
Steyermark, J. A.  1963.  Flora of Missouri.  Iowa State University Press, Ames.
     1725 pp.
Swink, F., and G. S. Wilhelm.  1979.  Plants of the Chicago region.  Third ed.
     The Morton Arboretum, Lisle, Illinois.  922 pp.
 
 OTHER REFERENCES:
     Pammel, L.H. 1911. A Manual of Poisonous Plants. Torch Press.
     Cedar Rapids, Iowa. 977 pp.
 
 END OF DATA FOR SPECIES  Artemisia biennis
 
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 ILPIN was developed by Louis Iverson*, with data compiled by David Ketzner and Jeanne Karnes
 Illinois Natural History Survey, 607 E. Peabody Dr., Champaign, IL 61820
     *currently employed by USDA Forest Service, 359 Main Rd., Delaware, OH 43015