Agropyron repens (L.).
Quackgrass


Habit: 		Strongly rhizomatous cool-season perennial..
Culms: 		30-100 cm tall or more, erect to decumbent; glabrous, bright green or glaucous.
Blades: 		Flat, 7-30 cm. long, 5-10 mm. wide, flat, glabrous to pilose; prominently auriculate.
Sheaths: 	Usually shorter than the internodes, glabrous or the lower sparsely pilose.
Ligule: 		Very short, .2-.8 mm long; membranous.
Inflorescence: 	Terminal, bilateral spikes, 5-15 cm. long, rachis scabrous on the angles.
Spikelets: 	3-7-flowered, 1-1.5 cm. long; slightly compressed, placed flatwise to the rachis, usually single at each node.
Glumes: 	6-12 mm. long; first slightly shorter than the second, or sometimes equal; acuminate or awn-tipped; 3-7-nerved.
Lemma: 	8-12 mm. long; strongly nerved, awn-tipped, 1-5 mm long or awnless.
Palea: 		Obtuse; shorter than the lemma; 2-keeled, scabrous on the keels.
Caryopsis:	Enclosed in the lemma, adherent to the palea.
Habitat: 	Fields and waste places, particularly in moist soils.
Kansas Range:	Northeast.
Remarks:	Introduced from Eurasia, considered a weed.
Synonyms:	Elymus repens (L.) Gould  quackgrass
		Agropyron repens (L.) Beauv. var. subulatum (Schreb.) Roemer & J.A. Schultes