ILLINOIS PLANT INFORMATION NETWORK
 
 ILPIN INFORMATION ON    Aster schreberi
 
 
 CLASS:    DICOTYLEDENAE
 ORDER:    ASTERALES
 FAMILY:   ASTERACEAE
 SCIENTIFIC NAME:  Aster schreberi
 AUTHORITY:  Nees
 
 COMMON NAMES:
    SCHREBER'S ASTER
 
 SYNONOMY:
     Aster chasei G.N. Jones
 
 PLANTS CODE: ASSC2
 
 NATURAL COMMUNITIES:
     FOREST
       UPLAND FOREST
         MESIC
     PRAIRIE
       HILL PRAIRIE
         LOESS
         GLACIAL DRIFT
         GRAVEL
         SAND
     PRIMARY
       BLUFF
 
 
 SAF FOREST COVER TYPE:
     CENTRAL
        Upland oak
           Northern Red Oak
 
 NATURAL DIVISION:  UNAVAILABLE
 
 COUNTIES:
   KNOX            MARSHALL        PEORIA          ROCK ISLAND     TAZEWELL
   WILL
 
 GROWTH FORM:  Dicot-herb
 
 TAXONOMY COMMENTS:
     Once considered distinct, Aster chasei is now considered as a
     disjunct member of the widespread Aster schreberi (Mohlenbrock, 1975).
 
 TAXONOMIC CHARACTERISTICS:
    ROOTS:  Adventitious   (rhizomes)
    LEAF ARRANGEMENT:   Alternate
    LEAF TYPE:   Simple
    LEAF MARGIN:   Serrate
    LEAF VENATION:  Pinnate
    LEAF SHAPE:       Cordate
    INFLORESCENCE:   Corymb  Head
    FLOWER MEROUS:  5
    FLOWER STRUCTURE:   Complete   Regular   Irregular
    FLOWER COLOR:   White
    FLOWER PLACEMENT:  Epigynous
    FRUIT:   Achene
 
 DISTINGUISHING CHARACTERISTIC COMMENTS:
     Ray flowers irregular, disk flowers regular, white rays; eglandular.
 
 GEOGRAPHIC INFORMATION:
     ORIGIN:   Native
 
 GEOGRAPHIC COMMENTS:
     Western range limit.
 
 POPULATION DYNAMICS:
     STATE STATUS: Threatened-ST
     FEDERAL STATUS: Not listed
     COMMONNESS:  Uncommon
     ENDEMIC:   NOT-ENDEMIC
 
 BIOLOGIC:
     HABIT:   Forb
     LIFE CYCLE:   Perennial
     REPRODUCTION:   Sexual   Vegetative
     FLOWERING PERIOD:
         MONTH BEGINNING-      7         MONTH END-     10
     TROPHIC STATUS:  Autotrophic
     C02 FIXATION:  C3
     SEX:      Perfect     Unisexual   -monoecious
 
 BIOLOGIC COMMENTS:
     Disk florets perfect & fertitle, ray florets pistilate & fertile.
 
 ECODISTRIBUTION COMMENTS:
     Ravines dominated by Quercus rubra; ravines in loess and glacial
     till bluffs on west bank of Illinois river, with Claytonia virginica,
     Dentaria laciniata, Dicentra canadensis, and Trillium recurvatum.
 
 ENVIRONMENTAL RELATIONSHIPS:
     GROWTH OF SPECIES IN VARIOUS CONDITIONS:
          GRAVEL         No data entered    SAND           No data entered
          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   No data entered
          NEUTRAL pH     No data entered    ACIDIC SOIL    No data entered
          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
     PREFERRED ASPECT:   North       HABITAT:   Moist
 
 FUNCTIONAL RELATIONSHIPS:
     MAJOR POLLINATION AGENT:   INSECT
 
 HUMAN RELATIONSHIP DATA:    No data entered
 
 WILDLIFE AND LIVESTOCK INFORMATION:   No data entered
 
 LIVESTOCK COMMENTS:
     Possible selenium accumulator.
 
 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.
Jones, G. N.  1963.  Flora of Illinois.  Third ed.  American Midland Naturalist
     Monograph 7.  University of Notre Dame, Indiana.  401 pp.
Steyermark, J. A.  1963.  Flora of Missouri.  Iowa State University Press, Ames.
     1725 pp.
Gleason, H. A., and A. Cronquist.  1963.  Manual of vascular plants of north-
     eastern United States and adjacent Canada.  Van Nostrand Reinhold Co.,
     New York.  810 pp.
Swink, F., and G. S. Wilhelm.  1979.  Plants of the Chicago region.  Third ed.
     The Morton Arboretum, Lisle, Illinois.  922 pp.
Porter, C. L.  1967.  Taxonomy of flowering plants.  W. H. Freeman and
     Company, San Francisco.  472 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.
Sheviak, C. J.  1981.  Endangered and threatened plants.  Pages 70-179 in M.
     L. Bowles, V. E. Diersing, and J. E. Ebinger, eds., Endangered and
     threatened vertebrate animals and vascular plants of Illinois.  Illinois
     Department of Conservation, Springfield.
 
 OTHER REFERENCES:
     Kurz, D.R. and M.L. Bowles. 1981. Report of the Status of Illinois
     Stephens, H.A. 1980. Poisonous Plants of the Central United States.
     Vascular Plants Potentially Endangered or Threatened in the
     United States. Natural Land Institute. Rockford, Il.
 
 END OF DATA FOR SPECIES  Aster schreberi
 
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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