Mat-forming Quillwort (Isoetes tegitiformans)

Aquatic plant 3-8 centimeters (1.2-3.2in) tall that reproduces by spores. Has five to 10 pointed, stiff and needle-like leaves, about 5-7 centimeters (2-2.8 in) long and 1 millimeter (0.04 in) wide. Leaves have light green tops that yellow toward the base.

The link address is: http://warnell.forestry.uga.edu/service/library/index.php3?docID=65&docHistory%5B%5D=5&docHistory%5B%5D=202&docHistory%5B%5D=359