ILLINOIS PLANT INFORMATION NETWORK
 
 ILPIN INFORMATION ON    Carex crawei
 
 
 CLASS:    MONOCOTYLEDENAE
 ORDER:    CYPERALES
 FAMILY:   CYPERACEAE
 SCIENTIFIC NAME:  Carex crawei
 AUTHORITY:  Dewey
 
 COMMON NAMES:
    SEDGE
 
 SYNONOMY:   None
 
 PLANTS CODE: CACR3
 
 NATURAL COMMUNITIES:
     PRIMARY
       LAKE SHORE
         FOREDUNE
 
 
 SAF FOREST COVER TYPE:
     NO
 
 
 NATURAL DIVISION:
     Northeastern Morainal
        Morainal
 
 COUNTIES:
   BOONE           CHAMPAIGN       COOK            DUPAGE          GRUNDY
   KANKAKEE        LAKE            MCHENRY         WILL
 
 GROWTH FORM:  Monocot
 
 TAXONOMIC CHARACTERISTICS:
    ROOTS:  Adventitious   (rhizomes)
    LEAF ARRANGEMENT:   Alternate
    LEAF TYPE:   Simple
    LEAF MARGIN:   Entire
    LEAF VENATION:  Parallel
    LEAF SHAPE:     Linear
    INFLORESCENCE:   Spike
    FLOWER STRUCTURE:   Incomplete  (no petals)  (no sepals)
    FRUIT:   Achene
 
 DISTINGUISHING CHARACTERISTIC COMMENTS:
     Solitary to loosely cespitose;  thick and stiff leaves usually curved or
     achene enclosed in a beaked perigynium.
     recurved;  terminal spike staminate overtopping the pistillate spike;
 
 GEOGRAPHIC INFORMATION:
     ORIGIN:   Native
 
 POPULATION DYNAMICS:
     STATE STATUS: Threatened-ST
     FEDERAL STATUS: Not listed
     COMMONNESS:  Rare
     ENDEMIC:   NOT-ENDEMIC
 
 BIOLOGIC:
     HABIT:   Grasslike
     LIFE CYCLE:   Perennial
     REPRODUCTION:   Sexual   Vegetative
     TROPHIC STATUS:  Autotrophic
     C02 FIXATION:  C3
     SEX:      Unisexual   -monoecious
 
 ECODISTRIBUTION COMMENTS:
     Sandy, calcareous interdunal flats.
 
 ENVIRONMENTAL RELATIONSHIPS:
     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  No data entered
          MODERATE SLOPE No data entered    STEEP SLOPES   No data entered
     HABITAT:   Wet   Moist
 
 FUNCTIONAL RELATIONSHIPS:
     MAJOR DISPERSAL AGENTS:   WATER   WIND
     MAJOR POLLINATION AGENT:   Wind
     MYCORRHIZAE:   no
 
 HUMAN RELATIONSHIP DATA:
     ALLERGENIC:  No
     SHOWY FLOWERS:  NO     LANDSCAPING:  NO
 
 WILDLIFE AND LIVESTOCK INFORMATION:   No data entered
 
 REVEGETATION PLANTINGS:
     WEEDINESS:   Non-weedy
 
 
 
 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.
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.
Porter, C. L.  1967.  Taxonomy of flowering plants.  W. H. Freeman and
     Company, San Francisco.  472 pp.
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.
Mackenzie, K. K.  1940.  North American Cariceae.  2 vols.  The New York
     Botanical Garden, New York.
Proctor, M.  and P. Yeo.  1972.  The pollination of flowers.  Taplinger
     Publishing Company, New York.
 
 END OF DATA FOR SPECIES  Carex crawei
 
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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