ILLINOIS PLANT INFORMATION NETWORK
 
 ILPIN INFORMATION ON    Aristida tuberculosa
 
 
 CLASS:    MONOCOTYLEDENAE
 ORDER:    CYPERALES
 FAMILY:   POACEAE
 SCIENTIFIC NAME:  Aristida tuberculosa
 AUTHORITY:  Nutt.
 
 COMMON NAMES:
    BEACH THREE AWN GRASS
    NEEDLE GRASS
 
 SYNONOMY:   None
 
 PLANTS CODE: ARTU
 
 NATURAL COMMUNITIES:
     FOREST
       SAND FOREST
         DRY
     PRAIRIE
       SAND PRAIRIE
         DRY
     PRIMARY
       LAKE SHORE
         FOREDUNE
 
 
 SAF FOREST COVER TYPE:
     NO
 
 NATURAL DIVISION:  UNAVAILABLE
 
 COUNTIES:
   CARROLL         CASS            COOK            HANCOCK         HENDERSON
   JO DAVIESS      KANKAKEE        LEE             MASON           MERCER
   ROCK ISLAND     SCOTT           TAZEWELL        UNION           WHITESIDE
 
 
 GROWTH FORM:  Monocot
 
 TAXONOMIC CHARACTERISTICS:
    ROOTS:  Adventitious   (fibrous)
    LEAF ARRANGEMENT:   Alternate
    LEAF TYPE:   Simple
    LEAF MARGIN:   Entire
    LEAF VENATION:  Parallel
    LEAF SHAPE:     Linear
    INFLORESCENCE:   Panicle
    FLOWER MEROUS:  3
    FLOWER STRUCTURE:   Complete
    FLOWER PLACEMENT:  Hypogynous
    FRUIT:   Grain
 
 DISTINGUISHING CHARACTERISTIC COMMENTS:
     Lemma awns are twisted and united into a basal column
     8-15 mm. long, tree parts are loosely coiled, 30-50 mm.
     long, glumes are 20-30 mm. long.
 
 GEOGRAPHIC INFORMATION:
     ORIGIN:   Native
 
 GEOGRAPHIC COMMENTS:
     Species is found in the northern half of the state and Union county
     (southern tip).
 
 POPULATION DYNAMICS:
     STATE STATUS: Not listed
     FEDERAL STATUS: Not listed
     COMMONNESS:  Occasional
     ENDEMIC:   NOT-ENDEMIC
 
 BIOLOGIC:
     HABIT:   Grasslike
     LIFE CYCLE:   Annual
     TROPHIC STATUS:  Autotrophic
     SEX:      Perfect
 
 ECODISTRIBUTION COMMENTS:
     Species is distributed on sandy soil with open cover, and
     dunes areas in northern Illinois.
 
 ENVIRONMENTAL RELATIONSHIPS:   No data entered
 
 FUNCTIONAL RELATIONSHIPS:    No data entered
 HUMAN RELATIONSHIP DATA:    No data entered
 
 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:  No data    PROTEIN VALUE: No data
     POISONOUS (LIVESTOCK):     -mechanical injury
 
 LIVESTOCK COMMENTS:
     Awns can be damaging.
 
 REVEGETATION PLANTINGS:    No data entered
 
 
 REFERENCES:
Mohlenbrock, R. H.  1967-continuing.  The illustrated flora of Illinois.
     Southern Illinois University Press, Carbondale.
 
 OTHER REFERENCES:
     Stephens, H.A. 1980. Poisonous Plants of the Central United States. Regent
          Press of Kansas. Lawrence, KA. 165 pp.
 
 END OF DATA FOR SPECIES  Aristida tuberculosa
 
 ------------------------------------------------------------------------
 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