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Native ash species, including white ash (pictured), have been declining rapidly this century due to predation by the emerald ash borer. [1]Silvics of North America (1991), [2] [3] a forest inventory compiled and published by the United States Forest Service, includes many hardwood trees.
FSC Lesser Known Timber Species; NCSU Inside Wood project; Reproduction of The American Woods: exhibited by actual specimens and with copious explanatory text by Romeyn B. Hough; US Forest Products Laboratory, "Characteristics and Availability of Commercially Important Wood" from the Wood Handbook Archived 2021-01-18 at the Wayback Machine PDF ...
This is a list of Southern African trees, shrubs, suffrutices, geoxyles and lianes, and is intended to cover Angola, Botswana, Eswatini, Lesotho, Malawi, Mozambique, Namibia, South Africa, Zambia and Zimbabwe. [1] The notion of 'indigenous' is of necessity a blurred concept, and is clearly a function of both time and political boundaries.
The whole database contains materials from over 10,000 woody species and 200 plant families. Initiator for this wood anatomy database has been the American botanist and wood scientist Elisabeth Wheeler. The database contains two distinctive menus for specific anatomical features of modern wood species: Softwoods [6] Hardwoods [7]
In the 20th century, the name zebrawood, as applied to Astronium species, went out of use. The word now usually refers to wood of the very different African tree Microberlinia brazzavillensis, but may be applied to other woods, mostly belonging to the same family Fabaceae, but not exclusively so, for example: Brachystegia spiciformis Goncalo alves.
Tropical timber may refer to any type of timber or wood that grows in tropical rainforests and tropical and subtropical moist broadleaf forests and is harvested there. Typical examples of worldwide industrial significance include, among others, the following hardwoods:
Hardwood from deciduous species, such as oak, normally shows annual growth rings, but these may be absent in some tropical hardwoods. [3] Hardwoods have a more complex structure than softwoods and are often much slower growing as a result. The dominant feature separating "hardwoods" from softwoods is the presence of pores, or vessels. [4]
The timber of this species is a very durable and termite-resistant wood, making it a highly valued and versatile building material with applications in engineering and construction as well as decorative work. [5] [7] [14] [15] It has a density of 830 kg/m 3 (1,400 lb/cu yd) and an above-ground life expectancy of more than 40 years. [14]