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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 8 - 12 cm long, 2 per bundle.
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:
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): Male Cone, 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
Organ Modifications: Ectomycorrhizae

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