ILLINOIS PLANT INFORMATION NETWORK
 
 ILPIN INFORMATION ON    Polanisia dodecandra
 
 
 CLASS:    DICOTYLEDENAE
 ORDER:    CAPPARALES
 FAMILY:   CAPPARIDACEAE
 SCIENTIFIC NAME:  Polanisia dodecandra
 AUTHORITY:  (L.) DC.
 
 COMMON NAMES:
    CLAMMYWEED
 
 SYNONOMY:
     Polanisia graveolens Raf.
 
 PLANTS CODE: PODO3
 
 NATURAL COMMUNITIES:
     WETLAND
       BORDER OF LAKE
     CULTURAL
       DEVELOPED LAND
 
 
 SAF FOREST COVER TYPE:
     NO
 
 NATURAL DIVISION:  UNAVAILABLE
 
 COUNTIES:
   ADAMS           BOND            BOONE           BROWN           BUREAU
   CARROLL         CASS            CHAMPAIGN       CHRISTIAN       CLARK
   CLAY            CLINTON         COLES           COOK            CRAWFORD
   CUMBERLAND      DEKALB          DEWITT          DOUGLAS         DUPAGE
   EDWARDS         EFFINGHAM       FAYETTE         FRANKLIN        FULTON
   GREENE          GRUNDY          HANCOCK         HENDERSON       HENRY
   IROQUOIS        JACKSON         JASPER          JEFFERSON       JO DAVIESS
   JOHNSON         KANE            KANKAKEE        KENDALL         KNOX
   LAKE            LASALLE         LAWRENCE        LEE             LOGAN
   MCDONOUGH       MCHENRY         MCLEAN          MACON           MARION
   MARSHALL        MASON           MASSAC          MENARD          MERCER
   MONTGOMERY      MORGAN          MOULTRIE        OGLE            PEORIA
   PERRY           PIATT           PIKE            PULASKI         PUTNAM
   RICHLAND        ROCK ISLAND     ST. CLAIR       SALINE          SANGAMON
   SCHUYLER        SCOTT           STARK           STEPHENSON      TAZEWELL
   UNION           VERMILION       WABASH          WHITE           WHITESIDE
   WILL            WILLIAMSON      WINNEBAGO       WOODFORD
 
 GROWTH FORM:  Dicot-herb
 
 TAXONOMIC CHARACTERISTICS:
    ROOTS:  Primary
    LEAF ARRANGEMENT:   Alternate
    LEAF TYPE:    Compound  (trifoliate)
    LEAF MARGIN:   Entire
    LEAF VENATION:  Pinnate
    LEAF SHAPE:     Oblong   Ovate     Obovate     Oval
    INFLORESCENCE:   Raceme
    FLOWER MEROUS:  4
    FLOWER STRUCTURE:   Complete   Irregular
    FLOWER COLOR:   Red   White
    FLOWER PLACEMENT:  Hypogynous
    FRUIT:   Capsule
 
 GEOGRAPHIC INFORMATION:
     ORIGIN:   Native
 
 POPULATION DYNAMICS:
     STATE STATUS: Not listed
     FEDERAL STATUS: Not listed
     COMMONNESS:  Common
     ENDEMIC:   NOT-ENDEMIC
 
 BIOLOGIC:
     HABIT:   Forb
     LIFE CYCLE:   Annual
     REPRODUCTION:   Sexual
     FLOWERING PERIOD:
         MONTH BEGINNING-      6         MONTH END-      9
     TROPHIC STATUS:  Autotrophic
     C02 FIXATION:  C3
     SEX:      Perfect
 
 ECODISTRIBUTION COMMENTS:
     Species is distributed on cindery railroad ballast; roadsides; rocky open
     waste ground; sand and gravel bars along streams.
 
 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:
     WEEDINESS:   Non-weedy
 
 
 
 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.
Steyermark, J. A.  1963.  Flora of Missouri.  Iowa State University Press, Ames.
     1725 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  Polanisia dodecandra
 
 ------------------------------------------------------------------------
 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