Pinus thunbergii


Japanese black pine is native to coastal areas of Japan, and is used as an ornamental in the San Francisco Bay Area. It is resistant to pollution and salt, but is subject to mortality by a native nematode, which has, unfortunately, been accidentally introduced to Japan, thus leading to the species becoming endangered in its native area.

In the Bay Area Japanese pine does not approach the 100 feet it may reach in the Pacific Northwest and its native Japan. 

Black pine is often used in Japanese style gardens and is also used in bonsai.

Stiff needles grow in bunches of two and are around four inches long. Male cones are less than an inch long, borne in clumps of 12-20 on the tips of spring growth.

Seed cones are brown, oval, and around three inches long, taking two years to mature. They have a small prickle.

All photos, except as credited to others, are copyright Emerald Canary.