ILLINOIS PLANT INFORMATION NETWORK
 
 ILPIN INFORMATION ON    Amaranthus graecizans
 
 
 CLASS:    DICOTYLEDENAE
 ORDER:    CARYOPHYLLALES
 FAMILY:   AMARANTHACEAE
 SCIENTIFIC NAME:  Amaranthus graecizans
 AUTHORITY:  L.
 
 COMMON NAMES:
    PROSTRATE AMARANTH
 
 SYNONOMY:   None
 
 PLANTS CODE: AMGR
 
 NATURAL COMMUNITIES:
     WETLAND
       BORDER OF LAKE
     CULTURAL
       AGRICULTURAL FIELD
         CROPLAND
       DEVELOPED LAND
 
 
 SAF FOREST COVER TYPE:
     NO
 
 NATURAL DIVISION:  UNAVAILABLE
 
 COUNTIES:
   BOND            BOONE           CALHOUN         CASS            CHAMPAIGN
   CHRISTIAN       COLES           COOK            DEKALB          DEWITT
   DOUGLAS         DUPAGE          EDGAR           EFFINGHAM       FAYETTE
   GREENE          GRUNDY          HANCOCK         HENDERSON       HENRY
   IROQUOIS        JACKSON         JEFFERSON       JERSEY          JOHNSON
   KANE            KANKAKEE        KENDALL         LAKE            LAWRENCE
   LEE             LOGAN           MCDONOUGH       MCHENRY         MCLEAN
   MACON           MACOUPIN        MADISON         MARION          MARSHALL
   MASON           MENARD          MORGAN          MOULTRIE        PERRY
   PIATT           PIKE            RANDOLPH        ST. CLAIR       SANGAMON
   SCOTT           SHELBY          STEPHENSON      TAZEWELL        UNION
   VERMILION       WILL            WILLIAMSON      WINNEBAGO
 
 GROWTH FORM:  Dicot-herb
 
 TAXONOMIC CHARACTERISTICS:
    ROOTS:  Primary
    LEAF ARRANGEMENT:   Alternate
    LEAF TYPE:   Simple
    LEAF MARGIN:   Entire
    LEAF VENATION:  Pinnate
    LEAF SHAPE:     Oblong     Obovate
    INFLORESCENCE:   Other
    FLOWER STRUCTURE:   Incomplete  (no petals)   Irregular
    FLOWER COLOR:   Green
    FLOWER PLACEMENT:  Hypogynous
    FRUIT:   Achene
 
 GEOGRAPHIC INFORMATION:
     ORIGIN:   Introduced-  N. America
 
 GEOGRAPHIC COMMENTS:
     Species is a native of western U.S.
 
 POPULATION DYNAMICS:
     STATE STATUS: Not listed
     FEDERAL STATUS: Not listed
     COMMONNESS:  Common
     ENDEMIC:   NOT-ENDEMIC
 
 BIOLOGIC:
     HABIT:   Forb
     LIFE CYCLE:   Annual
     REPRODUCTION:   Sexual
     FLOWERING PERIOD:
         MONTH BEGINNING-      7         MONTH END-      9
     TROPHIC STATUS:  Autotrophic
     C02 FIXATION:  C4
     SEX:      Unisexual   -monoecious
 
 ECODISTRIBUTION COMMENTS:
     Species is distributed on waste ground; along railroads, roadsides.
 
 ENVIRONMENTAL RELATIONSHIPS:   No data entered
 
 FUNCTIONAL RELATIONSHIPS:    No data entered
 HUMAN RELATIONSHIP DATA:
     SHOWY FLOWERS:  YES      AMOUNT:  Low
     LANDSCAPING:  NO
 
 WILDLIFE AND LIVESTOCK INFORMATION:   No data entered
 
 LIVESTOCK COMMENTS:
     Species is a good source of green food for poultry and hogs.
 
 REVEGETATION PLANTINGS:
     WEEDINESS:   Economic
 
 
 
 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.
Fernald, M. L.  1950.  Gray's manual of botany.  8th ed.  American Book Co.,
     New York.  1632 pp.
Swink, F., and G. S. Wilhelm.  1979.  Plants of the Chicago region.  Third ed.
     The Morton Arboretum, Lisle, Illinois.  922 pp.
Agricultural Experiment Station.  1981.  Weeds of the North Central States.
     Bulletin 772.  College of Agriculture, University of Illinois at Urbana-
     Champaign, Urbana.  303 pp.
Downton, W. J. S.  1975.  The occurrence of C4 photosynthesis among plants.
     Photosynthetica 9(1): 96-105.
 
 END OF DATA FOR SPECIES  Amaranthus graecizans
 
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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