ILLINOIS PLANT INFORMATION NETWORK
 
 ILPIN INFORMATION ON    Amaranthus ambigens
 
 
 CLASS:    DICOTYLEDENAE
 ORDER:    CARYOPHYLLALES
 FAMILY:   AMARANTHACEAE
 SCIENTIFIC NAME:  Amaranthus ambigens
 AUTHORITY:  Standl.
 
 COMMON NAMES:
    WATER HEMP
 
 SYNONOMY:   None
 
 PLANTS CODE: AMAM7
 
 NATURAL COMMUNITIES:
     WETLAND
       BORDER OF LAKE
 
 SAF FOREST COVER TYPE:  UNAVAILABLE
 
 NATURAL DIVISION:  UNAVAILABLE
 
 COUNTIES:
   DEKALB          DUPAGE          IROQUOIS        KENDALL         TAZEWELL
   WINNEBAGO
 
 GROWTH FORM:  Dicot-herb
 
 TAXONOMY COMMENTS:
     Acnida altissima (Riddell) Riddell to some authors
 
 TAXONOMIC CHARACTERISTICS:
    ROOTS:  Primary
    LEAF ARRANGEMENT:   Alternate
    LEAF TYPE:   Simple
    LEAF MARGIN:   Entire
    LEAF VENATION:  Pinnate
 
    INFLORESCENCE:   Panicle  Spike
    FLOWER STRUCTURE:   Incomplete  (no petals)
    FLOWER PLACEMENT:  Hypogynous
    FRUIT:   Achene
 
 GEOGRAPHIC INFORMATION:
     ORIGIN:   Native
 
 POPULATION DYNAMICS:
     STATE STATUS: Not listed
     FEDERAL STATUS: Not listed
     COMMONNESS:  Rare
     ENDEMIC:   NOT-ENDEMIC
 
 BIOLOGIC:
     HABIT:   Forb
     REPRODUCTION:   Sexual
     FLOWERING PERIOD:
         MONTH BEGINNING-      7         MONTH END-     10
     TROPHIC STATUS:  Autotrophic
     SEX:      Perfect     Unisexual   -dioecious
 
 ECODISTRIBUTION COMMENTS:
     Species is distributed in ditches.
 
 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
 
 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.
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.
 
 END OF DATA FOR SPECIES  Amaranthus ambigens
 
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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