Introductory
SPECIES: Toxicodendron radicans | Poison-Ivy 



ABBREVIATION : 
TOXRAD

SYNONYMS : 
   Rhus radicans L.
   Rhus toxicodendron L.
   R. t. var. malacotrichocarpa (A. H. Moore) Fern.


SCS PLANT CODE : 
   TORA2


COMMON NAMES : 
   poison-ivy
   eastern poison-ivy
   vine poison-ivy


TAXONOMY : 
The currently accepted name of poison-ivy is Toxicodendron radicans (L.)
Kuntze; it is in the cashew family (Anacardiaceae) [39].  Poison-ivy is
a highly variable taxon.  There is disagreement in the literature
regarding this species and its infrataxa.  This report follows the
nomeclature of Gillis [39].  Recognized subspecies are geographical
segregates.  Two subspecies present in eastern Asia are T. r. ssp.
orientale and T. r. ssp. hispidum [39].  Subspecies found in North and
Central Americas are [39]:
               Taxon                                Location
T. r. ssp. radicans                              Atlantic Coast
T. r. ssp. barkleyi Gillis                       Mexico & Central America
T. r. ssp. divaricatum (Greene) F. A. Barkl.     Mexico & Arizona
T. r. ssp. eximium (Greene) Gillis               Mexico & Texas
T. r. ssp. negundo (Greene) Gillis               west of Appalachians
T. r. ssp. pubens (Engelm. ex S. Wats.) Gillis   southeastern United States
T. r. ssp. verrucosum (Scheele) Gillis           Oklahoma & Texas.


LIFE FORM : 
Vine, Shrub

FEDERAL LEGAL STATUS : 
No special status

OTHER STATUS : 
NO-ENTRY


COMPILED BY AND DATE : 
Diane S. Pavek, December 1992


LAST REVISED BY AND DATE : 
NO-ENTRY


AUTHORSHIP AND CITATION : 
Pavek, Diane S. 1992. Toxicodendron radicans. In: Remainder of Citation

Related categories for Species: Toxicodendron radicans | Poison-Ivy