Details of...
Scientific Name: Pinus densiflora
Pronunciation: PYE-nus den-sih-FLORE-uh
Common Name: Japanese red pine
Family Name: Pinaceae
Plant Type: Conifer
Key ID Features: Needles 2 per fascicle, 8-12 cm long, margins rough, stomatal lines on all surfaces; female cones conical to ovate, 4-7 cm long, in whorls of 2-5 at branch nodes, remaining closed and attached for several years, seed and attached wing 10-17 mm long. (
Course(s): HORT 2355

Habit: Irregular, Spreading, Upright
Form: Irregular, Pyramidal - widely
Texture: Medium - fine
Mature Size:
Height:10 - 15m
Spread:5 - 7m
Growth Rate:Moderate
Origin: S.E. Asia / Japan / China
Hardiness Rating: Zone 5: (-29 to -23 C)
Exposure: Full sun
Soil/ Growing Medium:
Landscape Uses: Shade tree, Wind break, Winter interest, Woodland margin
Additional Info: Google. Cultivars shown or on campus may include P. 'Oculus Draconis' (variegated needles). Cultivars on campus include P. 'Low Glow', P. 'Pendula', and P. Umbraculifera.
Japanese red pine
Leaf Morphology: Glossary
Form: Needle-like
Arrangement: Fascicles
Texture/ Venation: Soft flexible
Surfaces: Glabrous
Leaf(let) Terms:
Shapes: Acicular
Apices: Acute
Margins: Entire

Inflorescence Type: n/a (male cone)
Flower Morphology:Monoecious plant
Colour (petals): No flowers, Yellow
Flower Time at Peak: Apr, May

Fruit Type: Cone (winged seeds)
Fruit Colour: Brown
Fruiting Time: Aug, Sep, Oct
Additional Info: Persistent

Bark Morphology: Plated, Lightly fissured, Exfoliating
Bark or Stem Colour: Orange, Red, Tan, Brown
Organ Modifications: Ectomycorrhizae

Pest Susceptibility: Wood deformity, ( Deer resistant, Drought resistant )
(AGB) Acer Griseum Bed : dwarf cv. Low Glow
(GAZ) GAZebo
(GAZN) GAZebo North
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