Moderate
Full Year
Grass
Perennial
Tripsacum species have modest pollen shed and limited pollen allergenicity when not common. However, it has been found to be a significant allergy plant in areas where it is more common, such as in Hawaii.
Eastern gamma grass (Tripsacum dactyloides) is a perennial found primarily in the eastern and Great Plains regions of the U.S. Gamma grass is a common pasture grass or forage crop. Gamma grass species are tall stout perennials (3' to 8' in height) with broad, flat leaves (12" in length).
Grains are spheroidal to ovoidal, sometimes elliptical. The exine is thin and the surface is granular to finely reticuloid. Poaceae apertures are 1-porate, with the pores usually circular to ovoidal.
Grains are 22-122 micrometers in diameter.
The shaded areas on the map indicates where the genus has been observed in the United States.
- Native, observed in a county - Introduced, observed in a county - Rarely observedEnter a full or partial species name to find more information on one of over 1,200 potentially allergenic plants.
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