ILLINOIS PLANT INFORMATION NETWORK
 
 ILPIN INFORMATION ON    Vernonia gigantea
 
 
 CLASS:    DICOTYLEDENAE
 ORDER:    ASTERALES
 FAMILY:   ASTERACEAE
 SCIENTIFIC NAME:  Vernonia gigantea
 AUTHORITY:  (Walt.) Trel.
 
 COMMON NAMES:
    TALL IRON WEED
 
 SYNONOMY:
     Veronica altissima Nutt.
 
 PLANTS CODE: VEGI
 
 NATURAL COMMUNITIES:
     FOREST
       FLOODPLAIN FOREST
       FLATWOODS
       THICKETS
     PRAIRIE
     WETLAND
       SWAMP
       SEEP & SPRING
         TYPICAL SEEP
         SPRING COMMUNITY
       BORDER OF LAKE
     CULTURAL
       AGRICULTURAL FIELD
         PASTURELAND
       SUCCESSIONAL FIELD
 
 
 SAF FOREST COVER TYPE:
     CENTRAL
        Upland oak
           White/Black/Northern Red-  Oak
        Other Central Types
           River Birch - Sycamore
           Silver Maple - American Elm
     SOUTHERN
        Bottomland
 
 NATURAL DIVISION:  UNAVAILABLE
 
 COUNTIES:
   ADAMS           ALEXANDER       BOND            BOONE           BROWN
   CALHOUN         CHAMPAIGN       CLARK           COLES           COOK
   CRAWFORD        CUMBERLAND      DEKALB          DEWITT          DOUGLAS
   DUPAGE          EDGAR           FAYETTE         FRANKLIN        GALLATIN
   GREENE          GRUNDY          HAMILTON        HANCOCK         HARDIN
   HENRY           IROQUOIS        JACKSON         JASPER          JEFFERSON
   JERSEY          JOHNSON         KANE            KANKAKEE        KENDALL
   LASALLE         LAWRENCE        LIVINGSTON      LOGAN           MCDONOUGH
   MCHENRY         MCLEAN          MADISON         MARION          MARSHALL
   MASON           MASSAC          MONROE          MOULTRIE        PERRY
   PIATT           PIKE            POPE            PULASKI         RICHLAND
   ST. CLAIR       SALINE          SANGAMON        SCHUYLER        SCOTT
   SHELBY          STEPHENSON      TAZEWELL        UNION           VERMILION
   WABASH          WASHINGTON      WAYNE           WHITE           WILL
   WILLIAMSON      WINNEBAGO
 
 GROWTH FORM:  Dicot-herb
 
 TAXONOMY COMMENTS:
     Includes var. taeniotricha Blake.
 
 TAXONOMIC CHARACTERISTICS:
    ROOTS:  Adventitious   (fibrous)   (rhizomes)
    LEAF ARRANGEMENT:   Alternate
    LEAF TYPE:   Simple
    LEAF MARGIN:   Entire
    LEAF VENATION:  Pinnate
    LEAF SHAPE:     Lanceolate
    INFLORESCENCE:   Head
    FLOWER MEROUS:  5
    FLOWER STRUCTURE:   Complete   Regular
    FLOWER COLOR:   Red   Violet   White
    FLOWER PLACEMENT:  Epigynous
    FRUIT:   Achene
 
 GEOGRAPHIC INFORMATION:
     ORIGIN:   Native
 
 POPULATION DYNAMICS:
     STATE STATUS: Not listed
     FEDERAL STATUS: Not listed
     COMMONNESS:  Common
     ENDEMIC:   NOT-ENDEMIC
 
 BIOLOGIC:
     HABIT:   Forb
     LIFE CYCLE:   Perennial
     REPRODUCTION:   Sexual
     FLOWERING PERIOD:
         MONTH BEGINNING-      7         MONTH END-      9
     TROPHIC STATUS:  Autotrophic
     SEX:      Perfect
 
 ECODISTRIBUTION COMMENTS:
     Valleys, meadows, open grounds, borders of swamps.
 
 ENVIRONMENTAL RELATIONSHIPS:   No data entered
 
 FUNCTIONAL RELATIONSHIPS:    No data entered
 HUMAN RELATIONSHIP DATA:    No data entered
 
 WILDLIFE AND LIVESTOCK INFORMATION:   No data entered
 
 REVEGETATION PLANTINGS:
     WEEDINESS:   Economic
 
 
 
 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.
Agricultural Experiment Station.  1981.  Weeds of the North Central States.
     Bulletin 772.  College of Agriculture, University of Illinois at Urbana-
     Champaign, Urbana.  303 pp.
 
 OTHER REFERENCES:
 
 
 END OF DATA FOR SPECIES  Vernonia gigantea
 
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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