ILLINOIS PLANT INFORMATION NETWORK
 
 ILPIN INFORMATION ON    Bacopa rotundifolia
 
 
 CLASS:    DICOTYLEDENAE
 ORDER:    SCROPHULARIALES
 FAMILY:   SCROPHULARIACEAE
 SCIENTIFIC NAME:  Bacopa rotundifolia
 AUTHORITY:  (Michx.) Wettst.
 
 COMMON NAMES:
    WATER HYSSOP
 
 SYNONOMY:   None
 
 PLANTS CODE: BABO
 
 NATURAL COMMUNITIES:
     FOREST
       FLOODPLAIN FOREST
         WET
     WETLAND
       SWAMP
       BORDER OF LAKE
     LAKE AND POND
       POND
     STREAM
       CREEK
         LOW-GRADIENT
 
 SAF FOREST COVER TYPE:  UNAVAILABLE
 
 NATURAL DIVISION:  UNAVAILABLE
 
 COUNTIES:
   ALEXANDER       BOND            CALHOUN         CASS            CHRISTIAN
   CLARK           CRAWFORD        CUMBERLAND      EDWARDS         FAYETTE
   FRANKLIN        GRUNDY          HAMILTON        HANCOCK         HARDIN
   HENRY           JACKSON         JASPER          JOHNSON         LAWRENCE
   MADISON         MARION          MASON           MASSAC          MENARD
   MONROE          MONTGOMERY      PEORIA          POPE            PULASKI
   PUTNAM          RANDOLPH        RICHLAND        ROCK ISLAND     ST. CLAIR
   SALINE          SANGAMON        UNION           WABASH          WHITE
   WILLIAMSON
 
 GROWTH FORM:  Dicot-herb
 
 TAXONOMIC CHARACTERISTICS:
    ROOTS:  Primary
    LEAF ARRANGEMENT:     Opposite
    LEAF TYPE:   Simple
    LEAF MARGIN:   Entire
    LEAF VENATION:  Palmate
    LEAF SHAPE:       Obovate     Orbicular
    INFLORESCENCE:   Solitary- few
    FLOWER MEROUS:  5
    FLOWER STRUCTURE:   Complete   Irregular
    FLOWER COLOR:   White
    FLOWER PLACEMENT:  Hypogynous
    FRUIT:   Capsule
 
 DISTINGUISHING CHARACTERISTIC COMMENTS:
     Species forms floating mats.
 
 GEOGRAPHIC INFORMATION:
     ORIGIN:   Native
 
 POPULATION DYNAMICS:
     STATE STATUS: Not listed
     FEDERAL STATUS: Not listed
     COMMONNESS:  Occasional
     ENDEMIC:   NOT-ENDEMIC
 POPULATION STATUS COMMENTS:
     Species is rare in northern half of state.
 
 
 BIOLOGIC:
     HABIT:   Forb
     LIFE CYCLE:   Perennial
     REPRODUCTION:   Sexual
     FLOWERING PERIOD:
         MONTH BEGINNING-      5         MONTH END-      9
     TROPHIC STATUS:  Autotrophic
     C02 FIXATION:  C3
     SEX:      Perfect
 
 ECODISTRIBUTION COMMENTS:
     Species is distributed in shallow water; ditches.
 
 ENVIRONMENTAL RELATIONSHIPS:   No data entered
 
 FUNCTIONAL RELATIONSHIPS:    No data entered
 HUMAN RELATIONSHIP DATA:
     SHOWY FLOWERS:  YES      AMOUNT:  Low
 
 
 HUMAN FACTOR COMMENTS:
     Species is used in fish aquaria and pools.
 
 WILDLIFE AND LIVESTOCK INFORMATION:
     FOOD VALUE:
         DEER VALUE:  Unknown
         UPLAND GAME VALUE:  Unknown
         WATERFOWL VALUE:   -   Fruit   Leaves
         SMALL NON-GAME BIRD VALUE:  Unknown
         SMALL MAMMAL VALUE:  Unknown
         AQUATIC MAMMAL VALUE:  Unknown
         FISH VALUE:  Unknown
     COVER VALUE:  No data entered
 
 LIVESTOCK PALATABILITY DATA:  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.
Downton, W. J. S.  1975.  The occurrence of C4 photosynthesis among plants.
     Photosynthetica 9(1): 96-105.
 
 END OF DATA FOR SPECIES  Bacopa rotundifolia
 
 ------------------------------------------------------------------------
 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