ILLINOIS PLANT INFORMATION NETWORK
 
 ILPIN INFORMATION ON    Jeffersonia diphylla
 
 
 CLASS:    DICOTYLEDENAE
 ORDER:    RANUNCULALES
 FAMILY:   BERBERIDACEAE
 SCIENTIFIC NAME:  Jeffersonia diphylla
 AUTHORITY:  (L.) Pers.
 
 COMMON NAMES:
    TWINLEAF
 
 SYNONOMY:   None
 
 PLANTS CODE: JEDI
 
 NATURAL COMMUNITIES:
     FOREST
       UPLAND FOREST
         MESIC
 
 
 SAF FOREST COVER TYPE:
     CENTRAL
        Upland oak
           White/Black/Northern Red-  Oak
     NORTHERN
       Northern Hardwoods
           Sugar Maple-Basswood
 
 NATURAL DIVISION:  UNAVAILABLE
 
 COUNTIES:
   BOND            COLES           COOK            CRAWFORD        DEKALB
   EFFINGHAM       GRUNDY          JEFFERSON       JO DAVIESS      JOHNSON
   KANE            KANKAKEE        KENDALL         LASALLE         MARION
   OGLE            PEORIA          SALINE          VERMILION       WILL
   WINNEBAGO       WOODFORD
 
 GROWTH FORM:  Dicot-herb
 
 TAXONOMIC CHARACTERISTICS:
    ROOTS:  Adventitious   (fibrous)
    LEAF ARRANGEMENT:    Basal
    LEAF TYPE:   Simple
    LEAF MARGIN:   Entire   Dentate   Lobed  (palmately)
    LEAF VENATION:  Palmate
    LEAF SHAPE:     Ovate    Reniform
    INFLORESCENCE:   Solitary- few
    FLOWER MEROUS:  4
    FLOWER STRUCTURE:   Complete   Regular
    FLOWER COLOR:   White
    FLOWER PLACEMENT:  Hypogynous
    FRUIT:   Capsule
 
 GEOGRAPHIC INFORMATION:
     ORIGIN:   Native
 
 POPULATION DYNAMICS:
     STATE STATUS: Not listed
     FEDERAL STATUS: Not listed
     COMMONNESS:  Uncommon
     ENDEMIC:   NOT-ENDEMIC
 
 BIOLOGIC:
     HABIT:   Forb
     LIFE CYCLE:   Perennial
     REPRODUCTION:   Sexual   Vegetative
     FLOWERING PERIOD:
         MONTH BEGINNING-      4         MONTH END-      5
     TROPHIC STATUS:  Autotrophic
     C02 FIXATION:  C3
     SEX:      Perfect
 
 ECODISTRIBUTION COMMENTS:
     Species is distributed in calcareous areas.
 
 ENVIRONMENTAL RELATIONSHIPS:   No data entered
 
 FUNCTIONAL RELATIONSHIPS:    No data entered
 HUMAN RELATIONSHIP DATA:
     SHOWY FLOWERS:  YES      AMOUNT:  Medium
 
 
 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.
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.
Mohlenbrock, R. H.  1967-continuing.  The illustrated flora of Illinois.
     Southern Illinois University Press, Carbondale.
Downton, W. J. S.  1975.  The occurrence of C4 photosynthesis among plants.
     Photosynthetica 9(1): 96-105.
 
 END OF DATA FOR SPECIES  Jeffersonia diphylla
 
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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