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A young female or seed cone on a Norway spruce (Picea abies) Immature male or pollen cones of Swiss pine (Pinus cembra) A conifer cone or, in formal botanical usage, a strobilus, pl.: strobili, is a seed-bearing organ on gymnosperm plants, especially in conifers and cycads. They are also called, according to the relevant genus, cypress cone ...
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.
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 ...
P. attenuata. Binomial name. Pinus attenuata. Lemmon. The knobcone pine, Pinus attenuata (also called Pinus tuberculata), [2] is a tree that grows in mild climates on poor soils. It ranges from the mountains of southern Oregon to Baja California with the greatest concentration in northern California and the Oregon-California border.
The seed cones are ovoid or oblong and 25–40 mm long. The cones have 10–14 scales, which are green at first and mature to brown about 20–24 months after pollination. The male cones are 3–5 mm long and release pollen in late winter. The cones of C. sempervirens can withstand years of being sealed and are known to perform serotiny. [8]
P. radiata is a coniferous evergreen tree growing to 15–30 m (50–100 ft) tall in the wild, but up to 60 m (200 ft) in cultivation in optimum conditions, with upward pointing branches and a rounded top. The leaves ("needles") are bright green, in clusters of three (two in var. binata), slender, 8–15 cm (3–6 in) long and with a blunt tip.
A pine is any conifer tree or shrub in the genus Pinus (/ ˈpaɪnəs /) [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]
Pinus chylla Lodd. Pinus wallichiana is a coniferous evergreen tree native to the Himalaya, Karakoram and Hindu Kush mountains, from eastern Afghanistan east across northern Pakistan and north west India to Yunnan in southwest China. It grows in mountain valleys at altitudes of 1800–4300 m (rarely as low as 1200 m), reaching 30–50 m (98 ...