hard to tell from the pic but is it nutsedge? Google some images and get back to use so we can make a recommendation.
Yes, this looks like nutsedge based on the pictures I see on Google.
what kind of turfgrass is it growing in?
I have no idea what kind of grass I have. I bought this home last fall and do not know the history. It is not a pure bluebrass or a zoysia.
It's important to figure out what grass you have because some nutsedge products can be used on one grass and not on another. Your Choices are Image for Nutsedge, Sedgehammer and Nutsedge Ender.
Read and follow label directions.
Okay. Thank you. I see that there are a number of products out there so I'll read the labels and figure out what I have...