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Thinopyrum pycnanthum (Godr.) Barkworth
tick quackgrass

General Information
Symbol: THPY4
Group: Monocot
Family: Poaceae
Duration: Perennial
Growth Habit: Graminoid
Native Status: CAN   I
L48   I
Data Source and Documentation
Plants-NRCS Logos
green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   


click on a thumbnail to view an image, or see all the Thinopyrum thumbnails at the Plants Gallery

Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 1: 284. Provided by Kentucky Native Plant Society. Scanned by Omnitek Inc. Usage Requirements.

Hitchcock, A.S. (rev. A. Chase). 1950. Manual of the grasses of the United States. USDA Miscellaneous Publication No. 200. Washington, DC. 1950. Usage Requirements.



Symbol Scientific Name
AGCA13 Agropyron campestre Gren. & Godr.
AGLI81 Agropyron littorale auct. non (Host) Durand
AGPUA Agropyron pungens (Pers.) Roem. & Schult. var. acadiense (F.T. Hubbard) Fernald
AGPU3 Agropyron pungens auct. non (Pers.) Roem. & Schult.
AGPY80 Agropyron pycnanthum (Godr.) Gren. & Godr.
ELPU4 Elymus pungens auct. non (Pers.) Melderis
ELPY80 Elymus pycnanthus (Godr.) Melderis
ELPU3 Elytrigia pungens auct. non (Pers.) Tutin
ELPY3 Elytrigia pycnantha (Godr.) Á. Löve
ELPY2 Elytrigia pycnanthes (Godr.) Á. Löve, orth. var.
TRPU12 Triticum pungens auct. non Pers.


Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Liliopsida – Monocotyledons
Subclass Commelinidae
Order Cyperales
Family Poaceae ⁄ Gramineae – Grass family
Genus Thinopyrum Á. Löve – wheatgrass
Species Thinopyrum pycnanthum (Godr.) Barkworth – tick quackgrass

Subordinate Taxa

This plant has no children

Legal Status

Wetland Status

Interpreting Wetland Status

North America
Atlantic and Gulf Coastal Plain FACW
Eastern Mountains and Piedmont FACW
Northcentral & Northeast FACW
Western Mountains, Valleys, and Coast FACW



Source Large Mammals Small Mammals Water Birds Terrestrial Birds


Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover