Note 2 — LONGLEAF PINE

There is no precise agreement as to what should be included in the group of hard pines in the United States, but the following twenty-two are usually placed in that class: Longleaf Pine (Pinus palustris), Shortleaf Pine (Pinus echinata), Loblolly Pine (Pinus tæda), Cuban Pine (Pinus heterophylla), Norway Pine (Pinus resinosa), Western Yellow Pine (Pinus ponderosa), Chihuahua Pine (Pinus chihuahuana), Arizona Pine (Pinus arizonica), Pitch Pine (Pinus rigida), Pond Pine (Pinus serotina), Spruce Pine (Pinus glabra), Monterey Pine (Pinus radiata), Knobcone Pine (Pinus attenuata), Gray Pine (Pinus sabiniana), Coulter Pine (Pinus coulteri), Lodgepole Pine (Pinus contorta), Jack Pine (Pinus divaricata), Scrub Pine (Pinus virginiana), Sand Pine (Pinus clausa), Table Mountain Pine (Pinus pungens), California Swamp Pine (Pinus muricata), Torry Pine (Pinus torreyana).