Pitch pine

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Pitch pine
Pitch pine (Pinus rigida)

Pitch pine ( Pinus rigida )

Systematics
Class : Coniferopsida
Order : Conifers (Coniferales)
Family : Pine family (Pinaceae)
Subfamily : Pinoideae
Genre : Pine ( Pinus )
Type : Pitch pine
Scientific name
Pinus rigida
Mill.

The Pinus rigida ( Pinus rigida ) is a plant from the genus of pine trees in the family of Pinaceae (Pinaceae). It is common in eastern North America.

description

Trunk with bark
Branch with male cones
Cones
The pitch pine habitat in Massachusetts
Illustration from Addisonia - colored illustrations and popular descriptions of plants
Illustration from A description of the genus Pinus , panel XVIII
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Vegetative characteristics

The pitch pine is an evergreen tree that reaches heights of growth of up to 31 meters. The crown is irregular, broad and domed. There are often many tufted adventitious buds on the trunk. The bark of the branches is pale orange-brown.

The needles are in bundles of three and are 8 to 9 centimeters long , on the tufted short shoots up to 12 centimeters long.

Generative characteristics

The cones are relatively small and cylindrical with a length of 3 to 5 centimeters; they often stay on the tree for years.

The number of chromosomes is 2n = 24.

Distribution map

Occurrence

The pitch pine is found in eastern North America from southeastern Canada Ontario and Québec to the eastern US states of Maine , New Hampshire , Vermont , Massachusetts , Rhode Island , Connecticut , New York , New Jersey , Delaware , Pennsylvania , Maryland , Ohio , Virginia , West Virginia , Kentucky , Tennessee , North Carolina , South Carolina and Georgia .

It thrives in North America at altitudes from 0 to 1400 meters.

Taxonomy

The first publication of Pinus rigida was in 1768 by Philip Miller in his Gardener's Dictionary , 8th edition, number 10. A homonym is Pinus rigida Hook. & Arn.

use

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In Central Europe it is rare, almost only planted in collections.

The wood of the pitch pine (referred to as pitch pine in international trade ) is considered to be very durable. In the past, large transmission towers, such as those in Mühlacker and Ismaning, were built from the wood of the pitch pine .

swell

Individual evidence

  1. ↑ a b c d Christopher J. Earle: Pinus pringlei. In: The Gymnosperm Database. www.conifers.org, 2019, accessed on April 23, 2019 .
  2. ↑ Pinus rigida at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
  3. ↑ Pinus rigida at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed on April 23, 2019.

Web links

Commons : Pech-Kiefer ( Pinus rigida )  - Album with pictures, videos and audio files