Details of...
Scientific Name: Fraxinus angustifolia
Pronunciation: FRACKS-ih-nus an-guss-tih-FOE-lee-uh
Common Name: narrow-leafed ash
Family Name: Oleaceae
Plant Type: Tree - deciduous
Key ID Features: Tree oval crown; leaves glossy, pinnate, olive-green, with 5-11(-13) leaflets, lanceolate with forward pointed teeth; flowers purple, April-May; fruit brown samara (absent on some cultivars). Winter ID: leaf scar D-shaped below lateral bud; buds brown to dark purple.
Course(s): not used (off campus)

Habit: Spreading, Upright
Form: Oval - vertical
Texture: Medium - fine
Mature Size:
Height:10 - 15m
Spread:10 - 15m
Growth Rate:Moderate
Origin: Africa, Europe, Garden origin
Hardiness Rating: Zone 4: (-34 to -29 C)
Exposure: Full sun
Soil/ Growing Medium: Well-drained
Water Use: Moderate
Landscape Uses: Fall interest, Shade tree, Specimen plant, Street (boulevard tree), Tall background
Additional Info: Google. Cultivars shown may include F. 'Raywood' (common street tree with narrow leaflets creating a finer texture).
narrow-leafed ash
Leaf Morphology: Glossary
Form: Compound
Arrangement: Opposite
Texture/ Venation: Pinnate venation, Soft flexible
Surfaces: Lustrous
Compound Leaf: Leaflets stalked, Odd-pinnate
Colour in Summer: Green, Dark-green
Colour in Fall: Orange, Red
Leaf(let) Terms:
Shapes: Lanceolate
Apices: Acuminate
Bases: Cuneate
Margins: Serrate

Inflorescence Type: Flowers clustered
Flower Morphology:Dioecious plant
Number of Petals:0
Ovary Position:Superior
Colour (petals): Not showy, Green-yellow, Dark-red
Flower Time at Peak: Apr, May
Fruit Type: Samara
Fruit Colour: Green, Brown
Fruiting Time: Jul, Aug
Additional Info: Persistent, Male cultivar that does not bear fruit

Bark Morphology: Deeply fissured
Bark or Stem Colour: Grey

Pest Susceptibility: Anthracnose, Stem borer insects, ( Disease resistant, Drought resistant )
Specific Pests: emerald ash borer, Gnomoniella fraxini
(NCA) Not Currently Available : not used
Location Map

Report an Error