ILLINOIS PLANT INFORMATION NETWORK
 
 ILPIN INFORMATION ON    Helianthus grosseserratus
 
 
 CLASS:    DICOTYLEDENAE
 ORDER:    ASTERALES
 FAMILY:   ASTERACEAE
 SCIENTIFIC NAME:  Helianthus grosseserratus
 AUTHORITY:  Martens
 
 COMMON NAMES:
    SAWTOOTH SUNFLOWER
    THICK-TOOTH SUNFLOWER
 
 SYNONOMY:   None
 
 PLANTS CODE: HEGR4
 
 NATURAL COMMUNITIES:
     FOREST
       THICKETS
     PRAIRIE
       TYPICAL PRAIRIE
         DRY
         DRY-MESIC
         MESIC
     WETLAND
       BORDER OF LAKE
     PRIMARY
       BLUFF
     CULTURAL
       AGRICULTURAL FIELD
         FIELD DIVISION
       DEVELOPED LAND
 
 
 SAF FOREST COVER TYPE:
     NO
 
 NATURAL DIVISION:  UNAVAILABLE
 
 COUNTIES:
   ADAMS           BOND            BOONE           BROWN           BUREAU
   CALHOUN         CARROLL         CASS            CHAMPAIGN       CHRISTIAN
   CLARK           CLAY            CLINTON         COLES           COOK
   CRAWFORD        CUMBERLAND      DEKALB          DEWITT          DOUGLAS
   DUPAGE          EDGAR           EDWARDS         EFFINGHAM       FAYETTE
   FORD            FRANKLIN        FULTON          GREENE          GRUNDY
   HAMILTON        HANCOCK         HENDERSON       HENRY           IROQUOIS
   JACKSON         JASPER          JEFFERSON       JERSEY          JO DAVIESS
   JOHNSON         KANE            KANKAKEE        KENDALL         KNOX
   LAKE            LASALLE         LAWRENCE        LEE             LIVINGSTON
   LOGAN           MCDONOUGH       MCHENRY         MCLEAN          MACON
   MACOUPIN        MADISON         MARION          MARSHALL        MASON
   MASSAC          MENARD          MERCER          MONROE          MONTGOMERY
   MORGAN          MOULTRIE        OGLE            PEORIA          PERRY
   PIATT           PIKE            POPE            PULASKI         PUTNAM
   RANDOLPH        RICHLAND        ROCK ISLAND     ST. CLAIR       SANGAMON
   SCHUYLER        SHELBY          STARK           STEPHENSON      UNION
   VERMILION       WABASH          WARREN          WASHINGTON      WAYNE
   WHITESIDE       WILL            WINNEBAGO       WOODFORD
 
 GROWTH FORM:  Dicot-herb
 
 TAXONOMIC CHARACTERISTICS:
    ROOTS:  Adventitious   (fibrous)   (rhizomes)
    LEAF ARRANGEMENT:   Alternate     Opposite
    LEAF TYPE:   Simple
    LEAF MARGIN:   Serrate
    LEAF VENATION:  Pinnate
    LEAF SHAPE:     Lanceolate   Ovate
    INFLORESCENCE:   Head
    FLOWER STRUCTURE:   Complete   Regular   Irregular
    FLOWER COLOR:   Yellow
    FLOWER PLACEMENT:  Epigynous
    FRUIT:   Achene
 
 DISTINGUISHING CHARACTERISTIC COMMENTS:
     This is the tallest sunflower, to 5 m. It is distinguished by: 1) hairless
     stems; 2) flat, deeply serrate, long-petioled leaves; 3) flower
     leaf surfaces covered with soft, wooly hairs.
 
 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   Vegetative
     FLOWERING PERIOD:
         MONTH BEGINNING-      7         MONTH END-     10
     TROPHIC STATUS:  Autotrophic
     SEX:      Perfect
 
 BIOLOGIC COMMENTS:
     Disc florets are perfect and fertile; ray florets are sterile.
 
 ECODISTRIBUTION COMMENTS:
     Species is distributed in edges of woods, moist places at bluff
     bases, ditches, along roads and railroads. In northern Illinois,
     species is very common in degraded prairie remnants.
 
 ENVIRONMENTAL RELATIONSHIPS:   No data entered
 
 FUNCTIONAL RELATIONSHIPS:    No data entered
 HUMAN RELATIONSHIP DATA:
     ALLERGENIC:  Maybe
 
     WILD HERBS:   Culinary-flavor
 
 HUMAN FACTOR COMMENTS:
     Species may possibly be used as: bread stuff; soup; oil; coffee
     substitute.
 
 WILDLIFE AND LIVESTOCK INFORMATION:   No data entered
 
 REVEGETATION PLANTINGS:
     WEEDINESS:   Non-weedy
 
 
 
 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.
Swink, F., and G. S. Wilhelm.  1979.  Plants of the Chicago region.  Third ed.
     The Morton Arboretum, Lisle, Illinois.  922 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.
Fernald, M. L., A. C. Kinsey, and R. C. Rollins.  1958.  Edible wild plants of
     eastern North America.  Harper and Brothers, New York.  452 pp.
 
 OTHER REFERENCES:
     Rodgers, C.F., T.E. Thompson, and G.J. Seiler. 1982. Sunflower
     species of the United States. National Sunflower Association,
     Bismark, N.D. 75 pp.
 
 END OF DATA FOR SPECIES  Helianthus grosseserratus
 
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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