ILLINOIS PLANT INFORMATION NETWORK
 
 ILPIN INFORMATION ON    Aster umbellatus
 
 
 CLASS:    DICOTYLEDENAE
 ORDER:    ASTERALES
 FAMILY:   ASTERACEAE
 SCIENTIFIC NAME:  Aster umbellatus
 AUTHORITY:  Mill.
 
 COMMON NAMES:
    FLATTOP ASTER
 
 SYNONOMY:   None
 
 PLANTS CODE: ASUM
 
 NATURAL COMMUNITIES:
     FOREST
       THICKETS
     PRAIRIE
       SAND PRAIRIE
         MESIC
       LISTED
         CHARACTERISTIC
     WETLAND
       BOG
       FEN
 
 
 SAF FOREST COVER TYPE:
     NO
 
 NATURAL DIVISION:  UNAVAILABLE
 
 COUNTIES:
   BOONE           CASS            COOK            DEKALB          DUPAGE
   HENRY           IROQUOIS        KANE            KANKAKEE        KENDALL
   LAKE            LASALLE         LEE             MCDONOUGH       MCHENRY
   MASON           MENARD          OGLE            PEORIA          STARK
   STEPHENSON      TAZEWELL        WILL            WINNEBAGO
 
 GROWTH FORM:  Dicot-herb
 
 TAXONOMIC CHARACTERISTICS:
    ROOTS:  Adventitious   (fibrous)   (rhizomes)
    LEAF ARRANGEMENT:   Alternate
    LEAF TYPE:   Simple
    LEAF MARGIN:   Entire
    LEAF VENATION:  Pinnate
    LEAF SHAPE:     Oblong   Lanceolate
    INFLORESCENCE:   Corymb  Head
    FLOWER STRUCTURE:   Complete   Regular   Irregular
    FLOWER COLOR:   White
    FLOWER PLACEMENT:  Epigynous
    FRUIT:   Achene
 
 GEOGRAPHIC INFORMATION:
     ORIGIN:   Native
 
 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
     SEX:      Perfect     Unisexual   -monoecious
 
 BIOLOGIC COMMENTS:
     Disk florets perfect and fertile, ray florets pistillate and fertile.
 
 ECODISTRIBUTION COMMENTS:
     Low places, a species with limited habitats.
 
 ENVIRONMENTAL RELATIONSHIPS:
     GROWTH OF SPECIES IN VARIOUS CONDITIONS:
          GRAVEL         No data entered    SAND           Good
          SANDY LOAM     No data entered    LOAM           No data entered
          CLAY LOAM      No data entered    CLAY           No data entered
          DENSE CLAY     No data entered    ORGANIC SOIL   Good
          NEUTRAL pH     No data entered    ACIDIC SOIL    Good
          EXTREMELY ACID No data entered    SALINE SOIL    No data entered
          SODIC SOIL     No data entered    SODIC-SALINE   No data entered
          ROCKY OUTCROPS No data entered    GENTLE SLOPES  Good
          MODERATE SLOPE No data entered    STEEP SLOPES   No data entered
     HABITAT:   Moist
 
 ENVIRONMENTAL RELATIONS COMMENTS:
     Calcareous.
 
 
 FUNCTIONAL RELATIONSHIPS:
     MAJOR POLLINATION AGENT:   INSECT
 
 HUMAN RELATIONSHIP DATA:    No data entered
 
 WILDLIFE AND LIVESTOCK INFORMATION:   No data entered
 
 LIVESTOCK COMMENTS:
     May be a facultative selenium absorber.
 
 REVEGETATION PLANTINGS:
     WEEDINESS:   Non-weedy
 
 
 
 REFERENCES:
Mohlenbrock, R. H., ed.  1986.  Guide to the vascular flora of Illinois.
     Revised and enlarged edition.  Southern Illinois University Press,
     Carbondale.  507 pp.
 
 END OF DATA FOR SPECIES  Aster umbellatus
 
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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