''Pinus'' × ''rhaetica'', commonly known as Rhætic pine, the species name refers to the
Rhætica alps, located in eastern Switzerland and western Austria. Rhaetic pine is described as a natural
hybrid
Hybrid may refer to:
Science
* Hybrid (biology), an offspring resulting from cross-breeding
** Hybrid grape, grape varieties produced by cross-breeding two ''Vitis'' species
** Hybridity, the property of a hybrid plant which is a union of two dif ...
of Mountain pine (''
Pinus mugo'') and Scots pine (''
Pinus sylvestris''). It is a
conifer
Conifers are a group of conifer cone, cone-bearing Spermatophyte, seed plants, a subset of gymnosperms. Scientifically, they make up the phylum, division Pinophyta (), also known as Coniferophyta () or Coniferae. The division contains a single ...
ous tree
nothospecies #REDIRECT Hybrid name
In botanical nomenclature, a hybrid may be given a hybrid name, which is a special kind of botanical name, but there is no requirement that a hybrid name should be created for plants that are believed to be of hybrid origin. ...
located in the
subsection ''Pinus''.
Description
''Pinus'' × ''rhaetica'' has variable
morphology
Morphology, from the Greek and meaning "study of shape", may refer to:
Disciplines
*Morphology (archaeology), study of the shapes or forms of artifacts
*Morphology (astronomy), study of the shape of astronomical objects such as nebulae, galaxies, ...
.
Commonly Rhætic pines grow as trees, although some are shrubby in form. The trees are 4.5–8 m tall, 3 m broad.
The
trunk
Trunk may refer to:
Biology
* Trunk (anatomy), synonym for torso
* Trunk (botany), a tree's central superstructure
* Trunk of corpus callosum, in neuroanatomy
* Elephant trunk, the proboscis of an elephant
Computing
* Trunk (software), in rev ...
is gray-brown, grayer and more frequently divided into irregular plates than in ''Pinus mugo''. The
bark
Bark may refer to:
* Bark (botany), an outer layer of a woody plant such as a tree or stick
* Bark (sound), a vocalization of some animals (which is commonly the dog)
Places
* Bark, Germany
* Bark, Warmian-Masurian Voivodeship, Poland
Arts, ...
on major branches resembles that of ''P. sylvestris'' in being reddish brown with papery flakes, but it can also be more like ''P. mugo'' and greyish and persistent.
The