The Pond, or Marsh Pine (P. serotina, Michx. ) is the water-loving, round-headed pine, with yellow-green leaves from 6 to 8 inches long, and sturdy cones that open only after they have hung, matured, for a year or two. In the flat, peaty and sandy swamps from North Carolina down the coast to the St. John's River in Florida, the traveller finds this pine with the longleaf. It supplies some turpentine and some lumber in North Carolina, but is not an important commercial tree.