ILLINOIS PLANT INFORMATION NETWORK
 
 ILPIN INFORMATION ON    Arabis hirsuta pycnocarpa
 
 
 CLASS:    DICOTYLEDENAE
 ORDER:    CAPPARALES
 FAMILY:   BRASSICACEAE
 SCIENTIFIC NAME:  Arabis hirsuta pycnocarpa
 AUTHORITY:  (L.) Scop.
 SUBSPECIFIC AUTHORITY: (M. Hopkins) Rollins
 
 COMMON NAMES:
    HAIRY ROCK CRESS
 
 SYNONOMY:
     Arabis pycnocarpa M. Hopkins
 
 PLANTS CODE: ARHIP
 
 NATURAL COMMUNITIES:
     FOREST
       FLOODPLAIN FOREST
     PRAIRIE
       GRAVEL PRAIRIE
     WETLAND
       BORDER OF LAKE
     PRIMARY
       BLUFF
         CLIFF (ROCKY BLUFF)
           LIMESTONE
 
 SAF FOREST COVER TYPE:  UNAVAILABLE
 
 NATURAL DIVISION:  UNAVAILABLE
 
 COUNTIES:
   ADAMS           BOONE           CALHOUN         CARROLL         COOK
   DEWITT          DUPAGE          FULTON          GALLATIN        GRUNDY
   HANCOCK         HENRY           JACKSON         JERSEY          JO DAVIESS
   KANE            KANKAKEE        LAKE            LASALLE         MCHENRY
   MACON           MASON           MENARD          MONROE          OGLE
   PEORIA          PIATT           POPE            ST. CLAIR       STARK
   TAZEWELL        WILL            WINNEBAGO
 
 GROWTH FORM:  Dicot-herb
 
 TAXONOMIC CHARACTERISTICS:
    ROOTS:  Primary
    LEAF ARRANGEMENT:   Alternate    Basal
    LEAF TYPE:   Simple
    LEAF MARGIN:   Dentate
    LEAF VENATION:  Pinnate
    LEAF SHAPE:     Oblong   Lanceolate   Oblanceolate
    INFLORESCENCE:   Raceme
    FLOWER MEROUS:  4
    FLOWER STRUCTURE:   Complete   Regular
    FLOWER COLOR:   White
    FLOWER PLACEMENT:  Hypogynous
    FRUIT:   SILIQUE
 
 DISTINGUISHING CHARACTERISTIC COMMENTS:
     Stems are hirsute, hairs are mostly simple.
 
 GEOGRAPHIC INFORMATION:
     ORIGIN:   Native
 
 POPULATION DYNAMICS:
     STATE STATUS: Not listed
     FEDERAL STATUS: Not listed
     COMMONNESS:  Occasional
     ENDEMIC:   NOT-ENDEMIC
 
 BIOLOGIC:
     HABIT:   Forb
     LIFE CYCLE:   Perennial
     REPRODUCTION:   Sexual
     FLOWERING PERIOD:
         MONTH BEGINNING-      5         MONTH END-      6
     TROPHIC STATUS:  Autotrophic
     C02 FIXATION:  C3
     SEX:      Perfect
 
 ECODISTRIBUTION COMMENTS:
     Species is distributed in shaded, moss-covered limestone boulders
     along stream borders in small rock canyons; vertical walls of limestone
     canyons.
 
 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:
Mohlenbrock, R. H., ed.  1986.  Guide to the vascular flora of Illinois.
     Revised and enlarged edition.  Southern Illinois University Press,
     Carbondale.  507 pp.
 
 END OF DATA FOR SPECIES  Arabis hirsuta pycnocarpa
 
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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