It just shows to you what you might find if you are looking!
We thought some of those embankments might have the right conditions to grow Spiranthes cernua ( similar to the conditions at our place): lots of water, excellent drainage and not too much competition from other plants. We were thrilled to spot this hill some years ago - driving carefully and looking....and we now check every year on them.
We even see Spiranthes coming up at the edge of the dirt road leading to our place.