ILLINOIS PLANT INFORMATION NETWORK
 
 ILPIN INFORMATION ON    Triglochin maritima
 
 
 CLASS:    MONOCOTYLEDENAE
 ORDER:    NAJADALES
 FAMILY:   JUNCAGINACEAE
 SCIENTIFIC NAME:  Triglochin maritima
 AUTHORITY:  L.
 
 COMMON NAMES:
    ARROW-GRASS
    COMMON BOG ARROW-GRASS
 
 SYNONOMY:   None
 
 PLANTS CODE: TRMA4
 
 NATURAL COMMUNITIES:
     WETLAND
       FEN
       PANNE
       BORDER OF LAKE
       LISTED
         CHARACTERISTIC
 
 
 SAF FOREST COVER TYPE:
     NO
 
 
 NATURAL DIVISION:
     Northeastern Morainal
        Morainal
        Lake Michigan Dunes
 
 COUNTIES:
   COOK            KANE            LAKE            MCHENRY         PEORIA
   TAZEWELL
 
 GROWTH FORM:  Monocot
 
 TAXONOMY COMMENTS:
     Also spelled Triglochin maritimum L.
 
 TAXONOMIC CHARACTERISTICS:
    ROOTS:  Adventitious   (rhizomes)
    LEAF ARRANGEMENT:    Basal
    LEAF TYPE:   Simple
    LEAF MARGIN:   Entire
    LEAF VENATION:  Parallel
    LEAF SHAPE:     Linear
    INFLORESCENCE:   Raceme
    FLOWER MEROUS:  3
    FLOWER STRUCTURE:   Complete   Regular
    FLOWER COLOR:   Green
    FLOWER PLACEMENT:  Hypogynous
    FRUIT:   Follicle
 
 DISTINGUISHING CHARACTERISTIC COMMENTS:
     Leaves terete.
 
 GEOGRAPHIC INFORMATION:
     ORIGIN:   Native
 
 GEOGRAPHIC COMMENTS:
     Southern margin of its range.
 
 POPULATION DYNAMICS:
     STATE STATUS: Endangered-ST
     FEDERAL STATUS: Not listed
     COMMONNESS:  Rare
     ENDEMIC:   NOT-ENDEMIC
 
 BIOLOGIC:
     HABIT:   Grasslike
     LIFE CYCLE:   Perennial
     REPRODUCTION:   Sexual   Vegetative
     FLOWERING PERIOD:
         MONTH BEGINNING-      5         MONTH END-      9
     TROPHIC STATUS:  Autotrophic
     C02 FIXATION:  C3
     SEX:      Perfect
 
 ENVIRONMENTAL RELATIONSHIPS:
     DISTURBANCE INDICATOR:   No
     SOIL CHEMISTRY INDICATOR:   None
     GROWTH OF SPECIES IN VARIOUS CONDITIONS:
          GRAVEL         No data entered    SAND           Good
          SANDY LOAM     No data entered    LOAM           No data entered
          CLAY LOAM      No data entered    CLAY           No data entered
          DENSE CLAY     No data entered    ORGANIC SOIL   No data entered
          NEUTRAL pH     No data entered    ACIDIC SOIL    No data entered
          EXTREMELY ACID No data entered    SALINE SOIL    No data entered
          SODIC SOIL     No data entered    SODIC-SALINE   No data entered
          ROCKY OUTCROPS No data entered    GENTLE SLOPES  Good
          MODERATE SLOPE Poor               STEEP SLOPES   Poor
     HABITAT:   Wet   Moist
 
 ENVIRONMENTAL RELATIONS COMMENTS:
     Calcareous
 
 
 FUNCTIONAL RELATIONSHIPS:
     MYCORRHIZAE:   no
 
 HUMAN RELATIONSHIP DATA:
     EDIBLE:  Yes
 
 
 WILDLIFE AND LIVESTOCK INFORMATION:
     FOOD VALUE:  No data entered
     COVER VALUE:  No data entered
 
 LIVESTOCK PALATABILITY DATA:
     CATTLE FORAGE: No data    SHEEP FORAGE:  No data    HORSE FORAGE:  No data
     GOAT FORAGE:   No data    ENERGY VALUE:  Low        PROTEIN VALUE: Low
     POISONOUS (LIVESTOCK):   Yes       -major
 
 LIVESTOCK COMMENTS:
     The genus is a common stock-poisoning plant.
 
 REVEGETATION PLANTINGS:
     WEEDINESS:   Economic
 
 
 
 REFERENCES:
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.
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.
Schwegman, J. E., G. D. Fell, M. Hutchison, G. Paulson, W. M. Shepherd, and
     J. White.  1973.  Comprehensive plan for the Illinois Nature Preserves
     System.  Part 2 - The Natural Divisions of Illinois.  Illinois Nature
     Preserves Commission, Springfield.  32 pp., plus map.
White, J., and M. H. Madany.  1978.  Classification of natural communities in
     Illinois.  Pages 309-405 in J. White, ed., Illinois natural areas
     inventory technical report.  Vol. 1.  Survey methods and results.
     Illinois Natural Areas Inventory, Urbana.
Sheviak, C. J.  1981.  Endangered and threatened plants.  Pages 70-179 in M.
     L. Bowles, V. E. Diersing, and J. E. Ebinger, eds., Endangered and
     threatened vertebrate animals and vascular plants of Illinois.  Illinois
     Department of Conservation, Springfield.
Downton, W. J. S.  1975.  The occurrence of C4 photosynthesis among plants.
     Photosynthetica 9(1): 96-105.
 
 END OF DATA FOR SPECIES  Triglochin maritima
 
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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