Pinus densiflora Pinaceae
Japanese Red Pine PI-nus den-si-FLO-ra
- 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.
- 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, the most common is Umbraculifera.
- densiflora: densely flowered, a reference to the large number of cones it produces.
- Eugene, Univ. of Oregon: northwest of Art Museum.
- Portland, Hoyt Arboretum.