If you've walked fields in the area recently you probably got these stuck in your shoes or socks (or worse, in your dog's coat).
It gets its name from its distinctive seed awns, which are long and needle-like (and very sharp too), twisting into a thread-like structure. The grass height is between one and four feet tall.
Ecological Role
Needle and thread grass has played a crucial role in the ecology of the Great Plains and other grassland regions for thousands of years. As a native species, it co-evolved with the region’s fauna. The grass's deep root system helps it survive in arid conditions and contributes to soil stability and health.
Needle and thread grass is valued for its drought tolerance and resilience in poor soil conditions. It is often used in restoration projects to rehabilitate degraded grasslands and prevent soil erosion. Its ability to thrive in a variety of environmental conditions makes it a valuable species for maintaining biodiversity and ecosystem balance.
Current Significance
Today, needle and thread grass remains an important component of North American grasslands. It serves as forage for wildlife and, to a lesser extent, for livestock, especially during early growth stages before the seeds develop. Conservationists and land managers recognize its role in prairie restoration and its contribution to the habitat of numerous species.
Grass awns and pets don't mix
Those sharp seeds can pose challenges for pets and livestock (the same is true for foxtails, another common grass found in our area). The awns of both grasses are designed to catch and stick, aiding in seed dispersal. However, they can also become lodged in the fur, skin, eyes, ears, nose, or mouth of animals. Once embedded, the awns can cause serious injuries, infections, and even death if not promptly and properly removed.
For pets, particularly dogs, these grasses can lead to painful veterinary visits and costly treatments. Here's what to know, how to prevent, and what to do if to keep your pets safe from grass awns.