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Giant sequoia. Silvics of North America (1991), [1] a forest inventory compiled and published by the United States Forest Service, includes many conifers. [a] It superseded Silvics of Forest Trees of the United States (1965), which was the first extensive American tree inventory. [3]
Encyclopedia of Conifers. A Comprehensive Guide to Conifer Cultivars and Species is an encyclopedia written by Aris G. Auders and Derek P. Spicer, published in 2012. The two-volume, extensively illustrated encyclopedia is a complete reference book covering all recognised conifer cultivars and species, both hardy and tropical.
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The American Conifer Society has established a select group of public gardens, designated as "reference gardens". To be considered for this program, a garden must follow the following standards: Contain conifer collections that will educate the public about growing conifers and demonstrate their uses in the landscape
The great majority of conifer genera and species are evergreen, retaining their leaves for several (2–40) years before falling, but unusual deciduous conifers occur in five genera (Larix, Pseudolarix, Glyptostrobus, Metasequoia and Taxodium), shedding their leaves in autumn and leafless through the winter.
The Piney Woods is a temperate coniferous forest terrestrial ecoregion in the Southern United States covering 54,400 square miles (141,000 km 2) of East Texas, southern Arkansas, western Louisiana, and southeastern Oklahoma. These coniferous forests are dominated by several species of pine as well as hardwoods including hickory and oak.
(Christopher Reynolds / Los Angeles Times) By one estimate, just 3% of the park's Douglas fir trees remain. Among the redwoods, "the new growth that's coming up from the roots is just amazing.
This list of horticulture and gardening books includes notable gardening books and journals, which can to aid in research and for residential gardeners in planning, planting, harvesting, and maintaining gardens. Gardening books encompass a variety of subjects from garden design, vegetable gardens, perennial gardens, to shade gardens.