Piptochaetium avenaceum

The range has been documented in: Alabama; Pennsylvania; Rhode Island, New York and Florida, North and South Carolina; Georgia; Michigan; Illinois; Oklahoma, and other states adjacent to these.

The awns can twist and un-twist in circumstances depending on the humidity and temperature of the area, which is required for them in order to thrive within soil.

The ripened flowering heads within the spikelet remain on the grass usually until autumn, in which the awns tend to bend and twist, spreading widely from the scales.

The palea (bract-like organs found within species of grass) tends to be long and blackish, in which the upper part consists of bent and twisted awns.

It is commonly said that oat grass is a good choice to use as a cover crop because when they die during the winter time, the residue will be much easier to handle when working with the soil, while preparing for planting season.