ILLINOIS PLANT INFORMATION NETWORK
 
 ILPIN INFORMATION ON    Carex austrina
 
 
 CLASS:    MONOCOTYLEDENAE
 ORDER:    CYPERALES
 FAMILY:   CYPERACEAE
 SCIENTIFIC NAME:  Carex austrina
 AUTHORITY:  (Small) Mack
 
 COMMON NAMES:
    SEDGE
 
 SYNONOMY:
     Carex muhlengergii schk. var. australis Olney
 
 PLANTS CODE: CAAU6
 
 NATURAL COMMUNITIES:
     FOREST
       UPLAND FOREST
         DRY
     PRAIRIE
       SAND PRAIRIE
         DRY
     PRIMARY
       GLADE
 
 SAF FOREST COVER TYPE:  UNAVAILABLE
 
 
 NATURAL DIVISION:
     Southern Till Plain
        Mt. Vernon Hill Country
 
 COUNTIES:
   JACKSON         PERRY
 
 GROWTH FORM:  Monocot
 
 TAXONOMIC CHARACTERISTICS:
    ROOTS:  Adventitious   (fibrous)
    LEAF ARRANGEMENT:   Alternate
    LEAF TYPE:   Simple
    LEAF MARGIN:   Entire
    LEAF VENATION:  Parallel
    LEAF SHAPE:     Linear
    INFLORESCENCE:   Spike  Head
    FLOWER STRUCTURE:   Incomplete  (no petals)  (no sepals)
    FRUIT:   Achene
 
 DISTINGUISHING CHARACTERISTIC COMMENTS:
     Slender, stiff, wiry culms;  spikes densely aggregated;  achene
     enclosed in a spreading pergynium.
 
 GEOGRAPHIC INFORMATION:
     ORIGIN:   Native
 
 POPULATION DYNAMICS:
     STATE STATUS: Endangered-ST
     FEDERAL STATUS: Not listed
     COMMONNESS:  Rare
     ENDEMIC:   NOT-ENDEMIC
 
 BIOLOGIC:
     HABIT:   Grasslike
     LIFE CYCLE:   Perennial
     REPRODUCTION:   Sexual
     FLOWERING PERIOD:
         MONTH BEGINNING-      4         MONTH END-      7
     TROPHIC STATUS:  Autotrophic
     C02 FIXATION:  C3
     SEX:      Unisexual   -monoecious
 
 BIOLOGIC COMMENTS:
     staminate flowers occuring at the apex of spike
 
 ECODISTRIBUTION COMMENTS:
     Found along railroads, roadside open banks, and rocky prairies.
 
 ENVIRONMENTAL RELATIONSHIPS:
     GROWTH OF SPECIES IN VARIOUS CONDITIONS:  No data entered
 
     HABITAT:   Dry
 
 FUNCTIONAL RELATIONSHIPS:
     MAJOR DISPERSAL AGENTS:   WIND
     MAJOR POLLINATION AGENT:   Wind
 
 HUMAN RELATIONSHIP DATA:
     SHOWY FLOWERS:  NO     LANDSCAPING:  NO
 
 WILDLIFE AND LIVESTOCK INFORMATION:   No data entered
 
 REVEGETATION PLANTINGS:    No data entered
 
 
 REFERENCES:
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.
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 austrina
 
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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