ILLINOIS PLANT INFORMATION NETWORK
 
 ILPIN INFORMATION ON    Aster prenanthoides
 
 
 CLASS:    DICOTYLEDENAE
 ORDER:    ASTERALES
 FAMILY:   ASTERACEAE
 SCIENTIFIC NAME:  Aster prenanthoides
 AUTHORITY:  Muhl.
 
 COMMON NAMES:
    CROOKED ASTER
 
 SYNONOMY:   None
 
 PLANTS CODE: ASPR4
 
 NATURAL COMMUNITIES:
     FOREST
       UPLAND FOREST
         MESIC
     WETLAND
       BORDER OF LAKE
 
 
 SAF FOREST COVER TYPE:
     CENTRAL
        Other Central Types
           River Birch - Sycamore
           Silver Maple - American Elm
     NORTHERN
       Northern Hardwoods
           Sugar Maple-Basswood
           Sugar Maple
           Beech - Sugar Maple
 
 NATURAL DIVISION:  UNAVAILABLE
 
 COUNTIES:
   FULTON          HENRY           JO DAVIESS      KENDALL         LAKE
   LEE             PEORIA
 
 GROWTH FORM:  Dicot-herb
 
 TAXONOMIC CHARACTERISTICS:
    ROOTS:  Adventitious   (rhizomes)
    LEAF ARRANGEMENT:   Alternate
    LEAF TYPE:   Simple
    LEAF MARGIN:   Serrate
    LEAF VENATION:  Pinnate
    LEAF SHAPE:     Lanceolate
    INFLORESCENCE:   Head
    FLOWER STRUCTURE:   Complete   Incomplete   Regular   Irregular
    FLOWER COLOR:   Blue   Violet   White
    FLOWER PLACEMENT:  Epigynous
    FRUIT:   Achene
 
 GEOGRAPHIC INFORMATION:
     ORIGIN:   Native
 
 GEOGRAPHIC COMMENTS:
     Species is only in northern 2/5 of Illinois.
 
 POPULATION DYNAMICS:
     STATE STATUS: Not listed
     FEDERAL STATUS: Not listed
     COMMONNESS:  Rare
     ENDEMIC:   NOT-ENDEMIC
 
 BIOLOGIC:
     HABIT:   Forb
     LIFE CYCLE:   Perennial
     FLOWERING PERIOD:
         MONTH BEGINNING-      8         MONTH END-      9
     TROPHIC STATUS:  Autotrophic
     SEX:      Perfect     Unisexual   -monoecious
 
 BIOLOGIC COMMENTS:
     Disk florets are perfect and fertile; ray florets are pistillate
     and fertile.
 
 ECODISTRIBUTION COMMENTS:
     Species is distributed in meadows; associated with Fraxinus
     nigra, Fraxinus pennsylvanica subintegerrima, and Juglans
     cinerea. See also SAF forest cover type.
 
 ENVIRONMENTAL RELATIONSHIPS:   No data entered
 
 FUNCTIONAL RELATIONSHIPS:
     MAJOR POLLINATION AGENT:   INSECT
 
 HUMAN RELATIONSHIP DATA:    No data entered
 
 WILDLIFE AND LIVESTOCK INFORMATION:   No data entered
 
 LIVESTOCK COMMENTS:
     Species may be a facultative selenium absorber.
 
 REVEGETATION PLANTINGS:    No data entered
 
 
 REFERENCES:
Mohlenbrock, R. H., ed.  1975.  Guide to the vascular flora of Illinois.
     Southern Illinois University Press, Carbondale.  494 pp.
Swink, F., and G. S. Wilhelm.  1979.  Plants of the Chicago region.  Third ed.
     The Morton Arboretum, Lisle, Illinois.  922 pp.
Gleason, H. A.  1952.  The new Britton and Brown illustrated flora of the
     northeastern United States and adjacent Canada.  3 vols.  The New York
     Botanical Garden, New York.
Kingsbury, J. M.  1964.  Poisonous plants of the United States and Canada.
     Prentice-Hall, Inc., Englewood Cliffs, New Jersey.  626 pp.
 
 END OF DATA FOR SPECIES  Aster prenanthoides
 
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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