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Pinus resinosa

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Kingdom
  
Order
  
Genus
  
Pinus

Scientific name
  
Pinus resinosa

Rank
  
Species

Division
  
Pinophyta

Family
  
Subgenus
  
Pinus

Higher classification
  
Pinus

Symbol of
  
Pinus resinosa httpsuploadwikimediaorgwikipediacommons11

Similar
  
Pine, Eastern white pine, Jack pine, Conifers, White spruce

Pinus resinosa, known as red pine or Norway pine, is a pine native to North America. It occurs from Newfoundland west to Manitoba, and south to Pennsylvania, with several smaller, disjunct populations occurring in the Appalachian Mountains in Virginia and West Virginia, as well as a few small pockets in extreme northern New Jersey and one in north central Illinois.

Contents

Pinus resinosa Pinus resinosa red pine Go Botany

Description

Red pine is a coniferous evergreen tree characterized by tall, straight growth in a variety of habitats. It usually ranges from 20–35 m (66–115 ft) in height and 1 m (3 ft 3 in) in trunk diameter, exceptionally reaching 43.77 m (143 ft 7 in) tall. The crown is conical, becoming a narrow rounded dome with age. The bark is thick and gray-brown at the base of the tree, but thin, flaky and bright orange-red in the upper crown; the tree's name derives from this distinctive character. Some red color may be seen in the fissures of the bark. The species is self pruning; there tend not to be dead branches on the trees, and older trees may have very long lengths of branchless trunk below the canopy.

Pinus resinosa Pinus resinosa Red Pine PFAF Plant Database

The leaves are needle-like, dark yellow-green, in fascicles of two, 12–18 cm (4 34–7 in) long, and brittle. The leaves snap cleanly when bent; this character, stated as diagnostic for red pine in some texts, is however shared by several other pine species. The cones are symmetrical ovoid, 4–6 cm (1 122 14 in) long by 2.5 cm (1 in) broad, and purple before maturity, ripening to nut-blue and opening to 4–5 cm (1 12–2 in) broad, the scales without a prickle and almost stalkless.

Pinus resinosa Pinus resinosa

Red pine is notable for its very constant morphology and low genetic variation throughout its range, suggesting it has been through a near extinction in its recent evolutionary history.

Ecology

Pinus resinosa FilePinus resinosa Papoose Creek Pines 1jpg Wikimedia Commons

It is intolerant of shade, but does well in windy sites; it grows best in well-drained soil. It is a long-lived tree, reaching a maximum age of about 500 years. The wood is commercially valuable in forestry for timber and paper pulp, and the tree is also used for landscaping.

Culture

The red pine is the state tree of Minnesota.

References

Pinus resinosa Wikipedia


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