it's almost June, might want to bring a mouth/nose cover just in case the pollen picks up. I remember mid June it gets really bad

I have a weird favor to ask anyone who rides the trail. there's a section about 50-75 ft long, where, on one side of the trail, is a slope or hill & it's covered in a low, green plant that seems to be a strong grower early in the season & would be good to fight erosion in my back yard. it's pretty pronounced. sorry don't know where it is, or what side of the trail, but if you see it, can you take a close up photo so I can identify it?

it looks something like this. thanks in advance