Pinus densiflora
Common name:
Japanese Red Pine
Pronunciation:
PI-nus den-si-FLO-ra
Family:
Pinaceae
Genus:
Type:
Conifer
Native to (or naturalized in) Oregon:
No
- Conifer, evergreen tree, 65-130 ft (20-30 m) tall in its habitat, much less in cultivation, possibly 40-50 ft (12-15 m), similar width, often irregular form. Bark reddish, thin, and exfoliating (somewhat similar to P. sylvestris). Needles two per bundle, densely brush-like at shoot ends, 6-12 cm long, 1 mm wide, indistinct stomatal lines on both sides, sheath on young needles 15 mm long. Cones solitary or grouped in whorls, directed outward, short stalk, 3-5 cm long, oval to conical.
- Sun; well-drained, slightly acid soil.
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Hardy to USDA Zone (3b) 4 Native to Japan, Korea, and northeastern China. Over 90 cultivars have been described, probably less than a dozen are commercially available; here are three:
- 'Golden Ghost' - shrub/tree, semi-dwarf, dense, needles in winter are light green but in the spring develop bright yellow to white bands
- 'Pendula' - tree/shrub, branches pendulous, may spread along the ground, needs to staked to be tree-like
- ‘Umbraculifera’ - tree/shrub, dwarf, slow growing to 12 ft (3.7 m) or more, mushroom shape, usually multistemmed
- densiflora: densely flowered, a reference to the large number of cones it produces.
- Eugene, Univ. of Oregon: northwest of Art Museum.
- Portland, Hoyt Arboretum.
Click image to enlarge
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plant habit
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needles and cones
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trunk, bark
