ILLINOIS PLANT INFORMATION NETWORK
 
 ILPIN INFORMATION ON    Arabis laevigata
 
 
 CLASS:    DICOTYLEDENAE
 ORDER:    CAPPARALES
 FAMILY:   BRASSICACEAE
 SCIENTIFIC NAME:  Arabis laevigata
 AUTHORITY:  (Muhl.) Poir.
 
 COMMON NAMES:
    SMOOTH ROCK CRESS
 
 SYNONOMY:   None
 
 PLANTS CODE: ARLA
 
 NATURAL COMMUNITIES:
     FOREST
       UPLAND FOREST
         MESIC
     WETLAND
       BORDER OF LAKE
     PRIMARY
       BLUFF
         CLIFF (ROCKY BLUFF)
 
 
 SAF FOREST COVER TYPE:
     NORTHERN
       Northern Hardwoods
           Sugar Maple-Basswood
 
 NATURAL DIVISION:  UNAVAILABLE
 
 COUNTIES:
   ADAMS           ALEXANDER       BOONE           BROWN           CALHOUN
   CARROLL         CHAMPAIGN       CHRISTIAN       CLARK           CLAY
   COLES           COOK            CRAWFORD        CUMBERLAND      DEKALB
   DEWITT          DOUGLAS         DUPAGE          EDGAR           EFFINGHAM
   FAYETTE         FULTON          GREENE          GRUNDY          HANCOCK
   HARDIN          HENDERSON       JACKSON         JASPER          JO DAVIESS
   JOHNSON         KANE            KANKAKEE        KENDALL         LAKE
   LASALLE         LEE             LIVINGSTON      LOGAN           MCDONOUGH
   MCHENRY         MCLEAN          MACON           MACOUPIN        MARION
   MARSHALL        MASSAC          MENARD          MONROE          MOULTRIE
   OGLE            PEORIA          PIATT           PIKE            POPE
   PULASKI         PUTNAM          RANDOLPH        RICHLAND        ROCK ISLAND
   ST. CLAIR       SALINE          SANGAMON        SCHUYLER        SCOTT
   SHELBY          STARK           STEPHENSON      TAZEWELL        UNION
   VERMILION       WABASH          WAYNE           WILL            WILLIAMSON
   WINNEBAGO
 
 GROWTH FORM:  Dicot-herb
 
 TAXONOMIC CHARACTERISTICS:
    ROOTS:  Primary
    LEAF ARRANGEMENT:   Alternate    Basal
    LEAF TYPE:   Simple
    LEAF MARGIN:   Entire   Serrate   Dentate
    LEAF VENATION:  Pinnate
    LEAF SHAPE:     Linear   Lanceolate   Oblanceolate     Obovate     Sagittate
    INFLORESCENCE:   Raceme
    FLOWER MEROUS:  4
    FLOWER STRUCTURE:   Complete   Regular
    FLOWER COLOR:   White
    FLOWER PLACEMENT:  Hypogynous
    FRUIT:   SILIQUE
 
 GEOGRAPHIC INFORMATION:
     ORIGIN:   Native
 
 POPULATION DYNAMICS:
     STATE STATUS: Not listed
     FEDERAL STATUS: Not listed
     COMMONNESS:  Occasional
     ENDEMIC:   NOT-ENDEMIC
 POPULATION STATUS COMMENTS:
     Species is occasional to common.
 
 
 BIOLOGIC:
     HABIT:   Forb
     LIFE CYCLE:   Biennial
     REPRODUCTION:   Sexual
     FLOWERING PERIOD:
         MONTH BEGINNING-      3         MONTH END-      6
     TROPHIC STATUS:  Autotrophic
     C02 FIXATION:  C3
     SEX:      Perfect
 
 ECODISTRIBUTION COMMENTS:
     Species is distributed in rocky woods; hillsides; calcareous ledges.
 
 ENVIRONMENTAL RELATIONSHIPS:   No data entered
 
 FUNCTIONAL RELATIONSHIPS:    No data entered
 HUMAN RELATIONSHIP DATA:
     SHOWY FLOWERS:  YES      AMOUNT:  Low
 
 
 WILDLIFE AND LIVESTOCK INFORMATION:   No data entered
 
 REVEGETATION PLANTINGS:    No data entered
 
 
 REFERENCES:
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.
Mohlenbrock, R. H.  1967-continuing.  The illustrated flora of Illinois.
     Southern Illinois University Press, Carbondale.
Downton, W. J. S.  1975.  The occurrence of C4 photosynthesis among plants.
     Photosynthetica 9(1): 96-105.
 
 END OF DATA FOR SPECIES  Arabis laevigata
 
 ------------------------------------------------------------------------
 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