Pinus densiflora | |
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Scientific classification | |
Kingdom: | Plantae |
Division: | Pinophyta |
Class: | Pinopsida |
Order: | Pinales |
Family: | Pinaceae |
Genus: | Pinus |
Subgenus: | Pinus |
Species: | P. densiflora |
Binomial name | |
Pinus densiflora Siebold & Zucc. |
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Synonyms | |
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Pinus densiflora, also called Korean red pine, the Japanese pine or Japanese red pine, has a home range that includes Japan, the Korean Peninsula, northeastern China (Heilongjiang, Jilin, Liaoning, Shandong) and the extreme southeast of Russia (southern Primorsky Krai). This pine has become a popular ornamental and has several cultivars, but in the winter it becomes yellowish. The height of this tree is 20–35 m. The Japanese red pine prefers full sun on well-drained, slightly acidic soil.
The leaves are needle-like, 8–12 cm long, with two per fascicle. The cones are 4–7 cm long. It is closely related to Scots pine, differing in the longer, slenderer leaves which are mid green without the glaucous-blue tone of Scots pine.
In Japan it is known as akamatsu (?, literally "red pine") and mematsu (雌松?). It is widely cultivated in Japan both for timber production and as an ornamental tree, and plays an important part in the classic Japanese garden. Numerous cultivars have been selected, including the variegated semi-dwarf Oculus Draconis, the pendulous, often contorted Pendula and the multi-trunked 'Umbraculifera' (Japanese 多形松 tagyoushou, sometimes spelled as tanyosho).