Scientific Name:	Pinus aristata
Pronunciation:	PYE-nus ar-iss-TAY-tuh
Common Name:	bristlecone pine
Family Name:	Pinaceae
Plant Type:	Conifer
Key ID Features:	Needles contorted, irregular shape; leaves 5 per fascicle, <4 cm long, dark blue-green, glaucous underneath; cones with each scale with a bristle-like spine 4-8 mm long. Winter ID: persistent (10-17 years) green needles; buds terminal, loose outer scales, adpressed inner scales, reddish-brown, sticky.
Course(s):	not used (off campus)

Habit: Dense Form: Pyramidal - narrowly Texture: Medium - fine Mature Size: Height: 5 - 7m Spread: 3 - 4m Growth Rate: Slow Origin: U.S. - southwest (Arizona, New Mexico, Colorado at over 2500 m) Hardiness Rating: Zone 4: (-34 to -29 C) Exposure: Full sun Soil/ Growing Medium: Well-drained Water Use: Low Landscape Uses: Accent plant, Alpine, Container planting, Mixed shrub border, Rock garden, Small garden/space, Specimen plant Additional Info: Google. Cultivar shown is P. ‘Sherwood Compact’ (dwarf bristlecone pine).

Leaf Morphology: Glossary Form: Needle-like Arrangement: Fascicles Texture/ Venation: Leathery Surfaces: Glabrous Colour in Fall: Dark-green Leaf(let) Terms: Shapes: Acicular Apices: Acute Margins: Entire

Inflorescence Type: n/a (male cone) Flower Morphology: Monoecious plant Colour (petals): No flowers, Brown, Dark-red, Yellow Flower Scent: None Flower Time at Peak: Apr, May

Fruit Type: Cone (winged seeds) Fruit Colour: Brown, Purple, Yellow, (yellow-buff when mature) Fruiting Time: Aug, Sep, Oct Additional Info: Showy, Persistent, cones are ovoid-cylindrical, 5–10 cm x 3–4 cm when closed, purple at first, ripening yellow-buff when 16 months old, with numerous thin, fragile scales, each scale with a bristle-like spine 4–8 mm long

Bark Morphology: Lightly fissured Bark or Stem Colour: Brown, Grey     Leaf Bud Type: Ovoid Organ Modifications: Ectomycorrhizae, Fibrous-like roots

Propagation:	Seed, Grafting
Plant Care:
Maintenance:	Low
Pest Susceptibility:	Heart rot, Root rot, Scale insects, ( Drought resistant )
Specific Pests:	pine scale (Chionaspis pinifoliae - do not confuse with the resin flecks that are common in species.

Location(s): (NCA) Not Currently Available Location Map

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