ILLINOIS PLANT INFORMATION NETWORK
 
 ILPIN INFORMATION ON    Humulus japonicus
 
 
 CLASS:    DICOTYLEDENAE
 ORDER:    UTRICALES
 FAMILY:   MORACEAE
 SCIENTIFIC NAME:  Humulus japonicus
 AUTHORITY:  Sieb. & Zucc.
 
 COMMON NAMES:
    JAPANESE HOPS
 
 SYNONOMY:   None
 
 PLANTS CODE: HUJA
 
 NATURAL COMMUNITIES:
     CULTURAL
       DEVELOPED LAND
 
 
 SAF FOREST COVER TYPE:
     NO
 
 NATURAL DIVISION:  UNAVAILABLE
 
 COUNTIES:
   ADAMS           BOONE           BROWN           CARROLL         CASS
   CHAMPAIGN       COOK            DUPAGE          GREENE          HANCOCK
   KNOX            LAWRENCE        LOGAN           MCHENRY         MCLEAN
   MACON           MADISON         MORGAN          OGLE            PEORIA
   PIATT           RANDOLPH        ROCK ISLAND     ST. CLAIR       SANGAMON
   TAZEWELL
 
 GROWTH FORM:  Dicot-herb
 
 TAXONOMIC CHARACTERISTICS:
    LEAF ARRANGEMENT:     Opposite
    LEAF TYPE:   Simple
    LEAF MARGIN:   Lobed  (palmately)
    LEAF VENATION:  Pinnate
    LEAF SHAPE:       Cordate     Other
    INFLORESCENCE:   Panicle  Spike
    FLOWER MEROUS:  5
    FLOWER STRUCTURE:   Incomplete  (no petals)   Regular
    FLOWER PLACEMENT:  Hypogynous
    FRUIT:   Achene
 
 DISTINGUISHING CHARACTERISTIC COMMENTS:
     Regarding leaf venation, species may also be palmate.
 
 GEOGRAPHIC INFORMATION:
     ORIGIN:   Introduced-  Asia
 
 GEOGRAPHIC COMMENTS:
     Species is native of eastern Asia.
 
 POPULATION DYNAMICS:
     STATE STATUS: Not listed
     FEDERAL STATUS: Not listed
     COMMONNESS:  Uncommon
     ENDEMIC:   NOT-ENDEMIC
 POPULATION STATUS COMMENTS:
     Species is much more infrequent than Humulus lupulus.
 
 
 BIOLOGIC:
     HABIT:   Vine
     LIFE CYCLE:   Perennial
     REPRODUCTION:   Sexual
     FLOWERING PERIOD:
         MONTH BEGINNING-      7         MONTH END-      9
     TROPHIC STATUS:  Autotrophic
     SEX:      Unisexual   -dioecious
 
 ECODISTRIBUTION COMMENTS:
     Species is distributed on open ground, along railroads, and wastes.
 
 ENVIRONMENTAL RELATIONSHIPS:   No data entered
 
 FUNCTIONAL RELATIONSHIPS:
     MAJOR POLLINATION AGENT:   Wind
 
 HUMAN RELATIONSHIP DATA:    No data entered
 
 HUMAN FACTOR COMMENTS:
     Species may cause dermatitis or hayfever (Stephens.)
 
 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.
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.
 
 OTHER REFERENCES:
     Stephens, H.A. 1980. Poisonous Plants of the Central United States.
          Regent Press of Kansas. Lawrence, KA. 165 pp.
 
 END OF DATA FOR SPECIES  Humulus japonicus
 
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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