ILLINOIS PLANT INFORMATION NETWORK
 
 ILPIN INFORMATION ON    Arabis hirsuta adpressipilis
 
 
 CLASS:    DICOTYLEDENAE
 ORDER:    CAPPARALES
 FAMILY:   BRASSICACEAE
 SCIENTIFIC NAME:  Arabis hirsuta adpressipilis
 AUTHORITY:  (L.) Scop.
 SUBSPECIFIC AUTHORITY: (M. Hopkins) Rollins
 
 COMMON NAMES:
    HAIRY ROCK CRESS
 
 SYNONOMY:   None
 
 PLANTS CODE: ARHIA
 
 NATURAL COMMUNITIES:
     FOREST
 
 SAF FOREST COVER TYPE:  UNAVAILABLE
 
 NATURAL DIVISION:  UNAVAILABLE
 
 COUNTIES:
   COOK            KANE            ST. CLAIR       WILL
 
 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:
     Species has stems with appressed, forked hairs.
 
 GEOGRAPHIC INFORMATION:
     ORIGIN:   Native
 
 POPULATION DYNAMICS:
     STATE STATUS: Not listed
     FEDERAL STATUS: Not listed
     COMMONNESS:  Rare
     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 limestone woods; hillsides.
 
 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:
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 hirsuta adpressipilis
 
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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