Introductory
SPECIES: Elytrigia repens | Quackgrass 



ABBREVIATION : 
ELYREP

SYNONYMS : 
   Agropyron repens (L.) Beauv.


SCS PLANT CODE : 
   AGRE2


COMMON NAMES : 
   quackgrass
   couchgrass
   witchgrass
   quitchgrass
   quickgrass
   chiendent


TAXONOMY : 
The currently accepted scientific name for quackgrass is Elytrigia
repens (L.) Desv. ex Nevski, in the family Gramineae.  Until recently,
quackgrass was known as Agropyron repens (L.) Beauv. [4].  One variety
and six forms have been recognized [18].  Short descriptions will follow
each here, rather than in GENERAL BOTANICAL CHARACTERISTICS.

Form                    Glume       Lemma       Rachis
E. r. aristatum         oblong      awned       smooth
E. r. trichorrhachis    oblong      blunt       hairy
E. r. pilosum           oblong      awned       hairy
E. r. vaillantianum     lanceolate  awned       smooth
E. r. heberhachis       lanceolate  blunt       hairy
E. r. setiferum         lanceolate  awned       hairy

E. r. var. subulatum    lanceolate  blunt       smooth

In the laboratory, quackgrass has been successfully crossed with the
following species [2,18]:
  
E. r. x E. arenaurius = Agroelymus adamsii Rousseau 
E. r. x Pseudoroegneria spicata 
E. r. x Agropyron cristatum.


LIFE FORM : 
Graminoid

FEDERAL LEGAL STATUS : 
No special status

OTHER STATUS : 
NO-ENTRY


COMPILED BY AND DATE : 
S. A. Snyder, March 1992


LAST REVISED BY AND DATE : 
NO-ENTRY


AUTHORSHIP AND CITATION : 
Snyder, S. A. 1992. Elytrigia repens. In: Remainder of Citation

Related categories for Species: Elytrigia repens | Quackgrass