The Japanese Black Pine (Pinus thunbergii) is a pine native to coastal areas of Japan (Kyushu, Shikoku and Honshu, but not Hokkaido) and South Korea. It can reach the height of 40 m, but rarely achieves this size outside its natural range. The needles are paired, about 7-12 cm long, and the cones are 4-7 cm in length.
Because of its resistance to pollution and salt, it is a popular horticulturaltree and is used for bonsai. In North America this tree is subject to widespread mortality by the native American Pinewood NematodeBursaphelenchus xylophilus, spread by means of beetle vectors. Subsequently, blue stain fungus invades the plant, leading to a rapid decline and death. This nematode has also been introduced to Japan accidentally, leading to the species becoming endangered in its native area.
The Japanese Black Pine is also known as the Japanese Pine, Black Pine, and (in Japanese) Kuro-matsu (黒松). Some texts also list it under the superfluous scientific name Pinus thunbergiana.
Blackpine is a strong tree that responds well to the techniques used in the creation of bonsai.
Pines that have been pruned drastically in the spring, like nursery stock that you have cut back, must be protected from harsh heat for their first summer.
Japaneseflpine is a distinctive and picturesque evergreen with an open, irregular structure.
Japaneseflpine is native to northeastern China, Korea and Japan.
The other genera in the pine family are Abies, the firs; Cedrus, the cedars; Keteleeria, a genus of three obscure fir-like species from SE Asia; Larix, the larches; Picea, the spruces; Pseudotsuga, the Douglas firs; Tsuga, the hemlocks; and Nothotsuga, Cathaya and Pseudolarix, three obscure monotypic genera from China.
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