Scientific Name:
Pinus heldreichii
Pronunciation:
PYE-nus hel-DRIK-ee-eye
Common Name:
Bosnian pine
Family Name:
Pinaceae
Plant Type:
Conifer
Key ID Features:
Needles 2 per fascicle, (6-)7-9(-11)cm long x 1.5mm wide; seed cones (5-)7-9cm long x 2.5cm wide, nearly black maturing brown and opening by October; seeds 7mm long, wing 25mm long. Conifers.org
Habit:
Upright
Form:
Pyramidal - narrowly
Texture:
Medium
Mature Height:
15 - 22m
Mature Spread:
5 - 7m
Growth Rate:
Moderate
Origin:
Europe (Italy, Balkan Peninsula)
Hardiness Rating:
Zone 5: (-29 to -23 °C)
Exposure:
Full sun
Soil/Growing Medium:
Well-drained
Landscape Uses:
Specimen plant, Tall background, Wind break, Winter interest
Additional Info:
Google. Cultivars shown or on campus may include P. 'Compact Gem'
Leaf Morphology:
Form:
Needle-like
Arrangement:
Fascicles
Texture/Venation:
Soft flexible
Surfaces:
Glabrous
Colour in Summer:
Dark-green
Colour in Fall:
Dark-green
Shapes:
Acicular
Apices:
Acute
Bases:
Truncate
Margins:
Inflorescence Type:
n/a (male cone)
Flower Morphology:
Monoecious plant
Colour (petals):
Male cone, No flowers, Yellow
Flower Time at Peak:
Apr, May
Fruit Type:
Cone (winged seeds)
Fruit Colour:
Blue, Brown, Black (cobalt blue in mid summer; brown when mature)
Fruiting Time:
Aug, Sep, Oct
Additional Info:
Persistent, 5-10cm long
Bark Morphology:
Plated
Bark or Stem Colour:
Grey
Additional Info:
Very thick
Leaf Bud Type:
Ovoid
Organ Modifications:
Ectomycorrhizae
Propagation:
Seed
Pest Susceptibility:
Blight or needle cast, Rust, Sawflies or horntails or ants (Deer resistant, Drought tolerant)
Course(s):
- HORT 2355
Location(s):
- (HPZ) Horticulture PlaZa : cv. Compact Gem
- (WDH) Wark-Dumais House : directly southwest of front house corner by light standard