Speedster; Try this link. Maybe not Dallisgrass but another variety of Paspalum? You can click on the pics in the link to enlarge them. The leaves have hairs like the pics you posted.
Quote from the link: Thin (bull) paspalum is common in sandy soils in disturbed, open areas throughout the Coastal plain region. Dallisgrass, field paspalum, and thin paspalum resemble each other, and thin paspalum is often mistakenly called dallisgrass. Thin paspalum has a glossier, more shiny leaf when young than dallisgrass. Dallisgrass leaf appearance is very similar to crabgrass, which is a dull green appearance.