What does the name Pine mean?
- [ Bot] Any tree of the coniferous genus Pinus. See Pinus.
- The wood of the pine tree.
- A pineapple.
What is the common name for pine tree?
- Native Area: Europe
- USDA Growing Zones: 3 to 7
- Height: 3 to 6 feet as a shrub; 10 to 25 feet as a small tree (depends on variety)
- Sun Exposure: Full sun to part shade
What are the names of pine trees?
- Native Area: Himalayan regions of Asia—Afghanistan, Bhutan, China, India, Myanmar, Nepal
- USDA Growing Zones: 9 to 11
- Height: 60 to 180 feet
- Sun Exposure: Full sun
What is the genus and species of a pine tree?
Pines are trees in the genus Pinus in the family Pinaceae and are the only genus in the order Pinales. There are about 115 species of pine, although different authorities accept between 105 and 124 species. Why are pine trees bad? Pine trees are one of the biggest contributors to air pollution.
What is the wood of a pine tree?
Their wood is coarse-grained and usually dark-coloured, with pale, often thick sapwood; the sheaths of the leaf clusters are persistent, and the leaves have two fibrovascular bundles. Young pine trees are usually conical, with whorls of horizontal branches. Older trees may have round, flat, or spreading crowns.
What are pine seeds?
Edible pine seeds, which are sold commercially as pine nuts, piñons, or pinyons, are produced by several species. Many pines are cultivated as ornamentals, including black, white, Himalayan, and stone pines, and some are planted in reforestation projects or for windbreaks. Pine-leaf oil, used medicinally, is a distillation product of the leaves;
How long do sugar pine cones stay closed?
In some species the cones open at maturity and the seeds are released, while in others the cones remain closed for several years until opened by rotting, by food-seeking animals, or by fire. In some pines the scale bearing the nutlike seed may be expanded to form a wing for airborne dispersal. sugar pine.
What are the diseases that can be caused by pine trees?
Pines are susceptible to several fungal diseases, among them white-pine blister rust, and are attacked by many insects, such as sawflies, weevils, bark beetles, and pine tip moths. Some pines are also susceptible to nematode infections and infestations by parasitic dwarf mistletoes (genus Arceuthobium ).
What type of wood is used in loblolly pines?
Their wood is close-grained, with thin, nearly white sapwood; the sheaths of the leaf clusters are deciduous, and the leaves contain a single fibrovascular bundle. Hard pines, such as Scotch, Corsican, and loblolly pines, have relatively hard timber, needles in bundles of two or three (rarely, five to eight), cone scales with prickles, ...
How many types of branches does a pine tree have?
Pines have two types of branches, long shoots and short shoots, and three types of leaves, primordial, scale, and adult. Seedling plants bear the lance-shaped spirally arranged primordial leaves. The triangular scale leaves, also lance-shaped, are borne on the long shoots of older trees. Both long and short shoots develop in the axils ...
Where is the cluster pine native to?
This species, widely cultivated as an ornamental, is native to Europe and western Asia. The cluster pine, or pinaster ( P. pinaster ), a vigorous grower in coastal sand, has been cultivated extensively for the purpose of stabilizing sand drifts, especially on the dunes of the Bay of Biscay and the Mediterranean.
What is the scientific name for a pine tree?
Pinus. If you Google what the scientific name for a pine tree actually is, you’ll be greeted with the answer Pinus Sylvestris, or just Pinus for short. Whilst it’s spelt a little differently, social media users are linking it to the word ‘penis’ in a childishly hilarious joke.
Is the pine tree a meme?
If you’ve been on Twitter recently you might have seen your feed flooded with everyone talking about pine trees. No, everyone isn’t weirdly obsessed with the tall evergreen tree, it’s actually a viral meme.
What subgenus is a pine?
Subgenus Pinus includes the yellow and hard pines. Pines in this subgenus have one to five needles per fascicle and two fibrovascular bundles per needle, and the fascicle sheaths are persistent, except in P. leiophylla and P. lumholtzii. Cone scales are thicker and more rigid than those of subgenus Strobus, and cones either open soon after they mature or are serotinous.
How many species of pine are there?
Unsourced material may be challenged and removed. Pinus, the pines, is a genus of approximately 111 extant tree and shrub species. The genus is currently split into two subgenera: subgenus Pinus ( hard pines ), and subgenus Strobus ( soft pines ).
What is the classification of pinus?
In general, this classification emphasized cone, cone scale, seed, and leaf fascicle and sheath morphology, and species in each subsection were usually recognizable by their general appearance. Pines with one fibrovascular bundle per leaf, ...
Which pine has more resin?
Diploxylon pines tend to have harder timber and a larger amount of resin than the haploxylon pines . The current division into two subgenera ( Pinus and Strobus) is supported with rigorous genetic evidence.
How many needles are in a section of pine?
Section Trifoliae (American hard pines), despite its name (which means "three-leaved"), has two to five needles per fascicle, or rarely eight. The cones of most species open at maturity, but a few are serotinous. All but two American hard pines belong to this section.
Where are pine cones native to?
Cones of all species have thick scales, and all except those of P. pinea open at maturity. Species in this section are native to Europe, Asia, and the Mediterranean, except for P. resinosa in northeastern North America and P. tropicalis in western Cuba.
What subgenus are ducampopinus?
The species of subgenus Ducampopinus were regarded as intermediate between the other two subgenera. In the modern classification, they are placed into subgenus Strobus, yet they did not fit entirely well in either so they were classified in a third subgenus. In 1888 the Californian botanist John Gill Lemmon placed them in subgenus Pinus.
Overview
A pine is any conifer tree or shrub in the genus Pinus of the family Pinaceae. Pinus is the sole genus in the subfamily Pinoideae. The Plant List compiled by the Royal Botanic Gardens, Kew and Missouri Botanical Garden accepts 126 species names of pines as current, together with 36 unresolved species and many more synonyms. The American Conifer Society (ACS) and the Royal Horticultural So…
Description
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. The smallest are Siberian dwarf pine and Potosi pinyon, and the tallest is an 81.8 m (268 ft) tall ponderosa pine located in southern Oregon's Rogue River-Siskiyou National Forest.
Taxonomy
Pines are gymnosperms. The genus is divided into two subgenera based on the number of fibrovascular bundles in the needle. The subgenera can be distinguished by cone, seed, and leaf characters:
• Pinus subg. Pinus, the yellow, or hard pine group, generally with harder wood and two or three needles per fascicle. The subgenus is also named diploxylon, on account of its two fibrovascula…
Distribution and habitat
Pines are native to the Northern Hemisphere, and to a few parts from the tropics to temperate regions in the Southern Hemisphere. Most regions of the Northern Hemisphere host some native species of pines. One species (Sumatran pine) crosses the equator in Sumatra to 2°S. In North America, various species occur in regions at latitudes from as far north as 66°N to as far south as 12°N.
Ecology
Pines grow well in acid soils, some also on calcareous soils; most require good soil drainage, preferring sandy soils, but a few (e.g. lodgepole pine) can tolerate poorly drained wet soils. A few are able to sprout after forest fires (e.g. Canary Island pine). Some species of pines (e.g. bishop pine) need fire to regenerate, and their populations slowly decline under fire suppression regimens.
Uses
Pines are among the most commercially important tree species valued for their timber and wood pulp throughout the world. In temperate and tropical regions, they are fast-growing softwoods that grow in relatively dense stands, their acidic decaying needles inhibiting the sprouting of competing hardwoods. Commercial pines are grown in plantations for timber that is denser and therefore more dur…
Culture
Pines have been a frequently mentioned tree throughout history, including in literature, paintings and other art, and in religious texts.
Writers of various nationalities and ethnicities have written of pines. Among them, John Muir, Dora Sigerson Shorter, Eugene Field, Bai Juyi, Theodore Winthrop, and Rev. George Allan D.D.
See also
• Pine Tree Flag
• Pine barrens
• Pine-cypress forest
• Three Friends of Winter
• El Pino (The Pine Tree)