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It is considered "the rarest conifer in North America." [80] The Center for Plant Conservation describes Florida torreya as "one of the rarest conifers in the world," reporting that in the mid-twentieth century it suffered a catastrophic decline, as all reproductive age trees died. Approximately 0.3% of the original population remains, mostly ...
The Douglas fir (Pseudotsuga menziesii) [4] is an evergreen conifer species in the pine family, Pinaceae.It is native to western North America and is also known as Douglas-fir, [5] Douglas spruce, [6] Oregon pine, [7] and Columbian pine. [8]
Abies grandis is a large evergreen conifer growing to 40–70 metres (130–230 feet) tall, exceptionally 100 m (330 ft), with a trunk diameter of up to 2 m (6 + 1 ⁄ 2 ft). The dead tree tops sometimes fork into new growth. [4]
The Pinaceae (/ p ɪ ˈ n eɪ s iː ˌ iː,-s i ˌ aɪ /), or pine family, are conifer trees or shrubs, including many of the well-known conifers of commercial importance such as cedars, firs, hemlocks, piñons, larches, pines and spruces. The family is included in the order Pinales, formerly known as Coniferales.
It is an evergreen conifer in the family Pinaceae. P. radiata is a versatile, fast-growing, medium-density softwood, suitable for a wide range of uses and valued for rapid growth, as well as desirable lumber and pulp qualities. [5] Its silviculture reflects a century of research, observation and practice. [5]
Most conifers are monoecious, but some are subdioecious or dioecious; all are wind-pollinated. Conifer seeds develop inside a protective cone called a strobilus. The cones take from four months to three years to reach maturity, and vary in size from 2 to 600 millimetres (1 ⁄ 8 to 23 + 5 ⁄ 8 in) long.
A pine is any conifer tree or shrub in the genus Pinus (/ ˈ p aɪ n ə s /) [1] of the family Pinaceae. Pinus is the sole genus in the subfamily Pinoideae . World Flora Online accepts 187 species names of pines as current, with additional synonyms, making it the largest family among the conifers. [ 2 ]
Throughout the Appalachian Mountain range, P. pungens is a component of conifer-dominated communities along combination with other pine species. [10] The three tallest known Pinus pungens are in Paris Mountain State Park , South Carolina; they are 26.85 to 29.96 metres (88 ft 1 in to 98 ft 4 in) tall.