Cynodon dactylon is one of the most common lawn grasses. The palm-like seedheads arise from a single point (this arrangement is called digitate). This grass is short, reaching from ankles to knees at most.
The many species of genus Digitaria look a
bit like Bermudagrass, many with narrow branches at the top. However, for the Arizona Digitaria
species, the branches usually extend upwards rather than sideways and do not
extend from a single point (are not digitate).