ILLINOIS PLANT INFORMATION NETWORK
 
 ILPIN INFORMATION ON    Aster oblongifolius
 
 
 CLASS:    DICOTYLEDENAE
 ORDER:    ASTERALES
 FAMILY:   ASTERACEAE
 SCIENTIFIC NAME:  Aster oblongifolius
 AUTHORITY:  Nutt.
 
 COMMON NAMES:
    AROMATIC ASTER
    OBLONG-LEAF ASTER
 
 SYNONOMY:   None
 
 PLANTS CODE: ASOB2
 
 NATURAL COMMUNITIES:
     PRAIRIE
       GRAVEL PRAIRIE
         DRY
         DRY-MESIC
         MESIC
       DOLOMITE PRAIRIE
         DRY
         DRY-MESIC
         MESIC
       HILL PRAIRIE
         GRAVEL
     PRIMARY
       GLADE
         LIMESTONE
       BLUFF
         CLIFF (ROCKY BLUFF)
           LIMESTONE
 
 
 SAF FOREST COVER TYPE:
     NO
 
 NATURAL DIVISION:  UNAVAILABLE
 
 COUNTIES:
   ADAMS           BOONE           CARROLL         CASS            COOK
   DEKALB          GREENE          GRUNDY          HANCOCK         HARDIN
   HENDERSON       HENRY           IROQUOIS        JACKSON         JO DAVIESS
   JOHNSON         LASALLE         MCHENRY         MACON           MADISON
   MARION          MARSHALL        MASON           MENARD          MONROE
   MORGAN          OGLE            PIKE            POPE            PUTNAM
   RANDOLPH        ROCK ISLAND     ST. CLAIR       SALINE          SCOTT
   UNION           WHITESIDE       WILL            WINNEBAGO
 
 GROWTH FORM:  Dicot-herb
 
 TAXONOMIC CHARACTERISTICS:
    ROOTS:  Adventitious   (rhizomes)
    LEAF ARRANGEMENT:   Alternate
    LEAF TYPE:   Simple
    LEAF MARGIN:   Entire   Serrate
    LEAF VENATION:  Pinnate
    LEAF SHAPE:     Linear   Oblong
    INFLORESCENCE:   Corymb  Head
    FLOWER STRUCTURE:   Complete   Incomplete   Regular   Irregular
    FLOWER COLOR:   Blue   Violet   Others
    FLOWER PLACEMENT:  Epigynous
    FRUIT:   Achene
 
 GEOGRAPHIC INFORMATION:
     ORIGIN:   Native
 
 GEOGRAPHIC COMMENTS:
     Species is occasional throughout Illinois, except absent in
     the E. Central counties.
 
 POPULATION DYNAMICS:
     STATE STATUS: Not listed
     FEDERAL STATUS: Not listed
     COMMONNESS:  Occasional
     ENDEMIC:   NOT-ENDEMIC
 
 BIOLOGIC:
     HABIT:   Forb
     LIFE CYCLE:   Perennial
     REPRODUCTION:   Sexual   Vegetative
     FLOWERING PERIOD:
         MONTH BEGINNING-      8         MONTH END-     10
     TROPHIC STATUS:  Autotrophic
     C02 FIXATION:  C3
     SEX:      Perfect     Unisexual   -monoecious
 
 BIOLOGIC COMMENTS:
     Disk florets are perfect and fertile; ray florets are pistillate and
     fertile. Species may also have a short caudex.
 
 ECODISTRIBUTION COMMENTS:
     Species is distributed in rocky prairies and open sloughs. In
     northern Illinois, it is a rare plant of dry, calcareous hill
     prairie; common on the limestone barrens near Channahon in Will
     county.
 
 ENVIRONMENTAL RELATIONSHIPS:   No data entered
 
 FUNCTIONAL RELATIONSHIPS:
     MAJOR POLLINATION AGENT:   INSECT
 
 HUMAN RELATIONSHIP DATA:
     ALLERGENIC:  No
 
 
 WILDLIFE AND LIVESTOCK INFORMATION:   No data entered
 
 LIVESTOCK COMMENTS:
     Species may be a facultative selenium absorber.
 
 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.
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 oblongifolius
 
 ------------------------------------------------------------------------
 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