Can you provide a closer picture? It is not possible to make out the structure in your photo.

Thank you for your response, here are some additional pictures.

here is another

and one more.....

That is a moss. Some think of moss as a "weed", a plant that you do not want growing where you do not want it growing, while others think of moss as a desirable plant.
Many think moss grows only in soils that are compacted, acidic, moist, and shady, but I have moss growing on the crushed dolomitic limestone that makes up my driveway that is in full sun and gets very little water, although the soil is compacted.
What are the growing conditions where this is growing?
Soil pH?
Amount of organic matter in the soil?
Shade or sun?
Constantly moist or dry?
If this moss is growing in fairly dense shade you may not be able to do anything about it except encourage it to grow.

Here is a link that might be useful: Moss images

As kimmsr suggests, it sure looks like moss but there isn't enough detail visible in the photos to be sure. It might also be a sedum such as mossy stonecrop (sedum acre) or stringy stonecrop (Sedum sarmentosum).

There is sufficient detail to say this is a moss but not enough to say which one. It isn't Sedum acre or any other Sedum.