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Jeffrey pine wood and ponderosa pine wood are sold together as yellow pine. [6] Both kinds of wood are hard (with a Janka hardness of 550 lbf (2,400 N)), but the western yellow pine wood is less dense than southern yellow pine wood (28 lb/cu ft (0.45 g/cm 3) versus 35 lb/cu ft (0.56 g/cm 3) for shortleaf pine). [6]
One of its main goals is the restoration of longleaf pine forest, to which end he has had 8 million longleaf pine seedlings planted on the land. [25] A 2009 study by the National Wildlife Federation says that longleaf pine forests will be particularly well adapted to environmental changes caused by climate disruption. [26]
Shortleaf pine is a source of wood pulp, plywood veneer, and lumber for a variety of uses. The shortleaf pine is one of the southern US "southern yellow pines"; it is also occasionally called southern yellow pine or the shortstraw pine. The wood from the shortleaf pine is used commercially for creating flooring and beams.
Loblolly pines are one of the fastest growing pines making it a valuable species in the lumber industry. The lumber marketed as yellow pine lumber and similar usage to other southern pines such as the more stronger Longleaf and Shortleaf pines. They are also used as pulpwood. [13] It grows at an average of 2 feet per year. [15]
Pinus elliottii, commonly known as slash pine, [2] [3] is a conifer tree native to the Southeastern United States. Slash pine is named after the "slashes" – swampy ground overgrown with trees and bushes – that constitute its habitat. Other common names include swamp pine, yellow slash pine, and southern Florida pine. [3]
A stair tread is the horizontal portion of a set of stairs on which a person walks. The tread can be composed of wood, metal, plastic, or other materials. In residential settings, treads can be covered in carpeting. Stair treads can come in non-slip varieties, particularly in commercial or industrial locations. [1]
Common pine (Pinus spp.) species are shortleaf pine (Pinus echinata) and loblolly pine (Pinus taeda). The pine forests are regenerated by fire. Without fire, hardwood species grow in below the pines. [2] Sugar maple (Acer saccharum), a shade tolerant tree, grows amid the oaks and hickories in the northern part of this ecoregion. [6]
Pinus ponderosa, commonly known as the ponderosa pine, [3] bull pine, blackjack pine, [4] western yellow-pine, [5] or filipinus pine, [6] is a very large pine tree species of variable habitat native to mountainous regions of western North America. It is the most widely distributed pine species in North America.