Introductory
SPECIES: Xanthium strumarium | Common Cocklebur 



ABBREVIATION : 
XANSTR

SYNONYMS : 
   Xanthium italicum Moretti
   Xanthium pensylvanicum Wallr.
   Xanthium chinense Miller
   Xanthium echinatum Murray
   Xanthium americanum Walter
   Xanthium cylindraceum Millsp. & Sherff


SCS PLANT CODE : 
   XAST
   XASTC
   XASTG


COMMON NAMES : 
   common cocklebur
   cocklebur
   clotbur
   sheepbur
   ditchbur


TAXONOMY : 
The genus Xanthium exhibits considerable variation in fruit morphology,
and in the past more than 20 species have been recognized within this
genus [32].  Love and Dansereau's [18] revision of the Xanthium genus
reduced the number of Xanthium species to two:  common cocklebur (X.
strumarium L.) and spiny cocklebur (X. spinosum L.).  This
classification is widely accepted today.

Currently recognized common cocklebur varieties include [12]:

        X. s. var. canadense (P. Mill.) T. & G.
        X. s. var. glabratum (DC.) Cronq.
        X. s. var. strumarium


LIFE FORM : 
Forb

FEDERAL LEGAL STATUS : 
No special status

OTHER STATUS : 
NO-ENTRY


COMPILED BY AND DATE : 
Ronald Uchytil, December 1992


LAST REVISED BY AND DATE : 
NO-ENTRY


AUTHORSHIP AND CITATION : 
Uchytil, Ronald J. 1992. Xanthium strumarium. In: Remainder of Citation

Related categories for Species: Xanthium strumarium | Common Cocklebur