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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.
A conifer cone or pinecone (strobilus, pl.: strobili in formal botanical usage) is a seed-bearing organ on gymnosperm plants. It is usually woody, ovoid to globular, including scales and bracts arranged around a central axis, especially in conifers and cycads. The cone of Pinophyta (conifer clade) contains the reproductive structures.
The Pinaceae (/ pɪˈneɪsiːˌiː, - siˌaɪ /), 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. Pinaceae have distinctive cones with ...
Pine trees are evergreen, coniferous resinous trees (or, rarely, shrubs) growing 3–80 metres (10–260 feet) tall, with the majority of species reaching 15–45 m (50–150 ft) tall. [4] The smallest are Siberian dwarf pine and Potosi pinyon, and the tallest is an 83.45 m (273.8 ft) tall sugar pine located in Yosemite National Park. [5]
Larch trees go further north than all, reaching in North America and Siberia the tundra and polar ice. The larches are pioneer species not very demanding towards the soil and they are very long-lived trees. They live in pure or mixed forests together with other conifers or more rarely with broad-leaved trees.
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 ...
Cypress is any of the twelve species of ornamental and timber evergreen conifers constituting the genus Cupressus of the family Cupressaceae. Many resinous, aromatic evergreen trees called cypress belong to other genera of the same family, especially species of false cypress and cypress pine. The name cypress is occasionally used for some ...
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 ...