adobe

Clay mixed with water and small pieces of plant material. In pueblos, adobe is usually used to plaster walls, roofs, and sometimes floors. When adobe dries, it forms a hard surface that helps keep the inside of the house warm and dry.

These photographs show two chunks of adobe from ancient Pueblo houses. You can still see the impressions of branches and twigs that were used to build the walls or roofs.

Adobe with plant impressions.