Search results
Results from the WOW.Com Content Network
Apart from two species in the yew family, all are in either the pine family (including firs, larches, spruces, pines, Douglas firs and hemlocks) or the cypress family (including junipers, redwoods, giant sequoias, bald cypresses and four genera of cedars). [ 2 ][ 6 ][ 7 ][ b ] Softwood from North American conifers has a variety of commercial uses.
List of forest-inventory conifers in the United States. 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 [a] It superseded Silvics of Forest Trees of the United States (1965), which was the first extensive American tree inventory.
Pinophytina. Conifers are a group of cone-bearing seed plants, a subset of gymnosperms. Scientifically, they make up the division Pinophyta (/ pɪˈnɒfɪtə, ˈpaɪnoʊfaɪtə /), also known as Coniferophyta (/ ˌkɒnɪfəˈrɒfɪtə, - oʊfaɪtə /) or Coniferae. The division contains a single extant class, Pinopsida.
Description. Douglas-firs are medium-size to extremely large evergreen trees, 20–100 metres (70–330 feet) tall (although only Pseudotsuga menziesii var. menziesii, common name coast Douglas-firs, reach heights near 100 m) [ 10 ] and commonly reach 2.4 m (8 ft) in diameter, [ 11 ] although trees with diameters of almost 5 metres (16 feet ...
Pinus sylvestris is an evergreen coniferous tree growing up to 35 metres (115 feet) in height [ 4 ] and 1 m (3 ft 3 in) in trunk diameter when mature, [ 5 ] exceptionally over 45 m (148 ft) tall and 1.7 m (5+1⁄2 ft) in trunk diameter on very productive sites. The tallest on record is a tree over 210 years old growing in Estonia which stands ...
Category. : Deciduous conifers. 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.
Metasequoia, or dawn redwood, is a genus of fast-growing coniferous trees, one of three species of conifers known as redwoods. The living species Metasequoia glyptostroboides is native to Lichuan county in Hubei province, China. Although the shortest of the redwoods, it grows to at least 165 feet (50 meters) in height.
Tsuga canadensis, also known as eastern hemlock, [ 3 ]eastern hemlock-spruce, [ 4 ] or Canadian hemlock, and in the French-speaking regions of Canada as pruche du Canada, is a coniferous tree native to eastern North America. It is the state tree of Pennsylvania. [ 5 ] Eastern hemlocks are widespread throughout much of the Great Lakes region ...