Scientific Name:	Fraxinus pennsylvanica cvs.
Pronunciation:	FRACKS-ih-nus pen-sil-VAN-ih-kuh
Common Name:	green ash
Family Name:	Oleaceae
Plant Type:	Tree - deciduous
Key ID Features:	Tree oval crown; leaves glossy, pinnate, olive-green, 5-7 (-9) lanceolate leaflets; flowers purple, April-May; fruit brown samara (absent on some cultivars). Winter ID: leaf scar D-shaped below lateral bud; buds dark chocolate brown.
Course(s):	HORT 2355

Habit: Spreading, Upright Form: Oval - vertical Texture: Medium Mature Size: Height: 10 - 15m Spread: 10 - 15m Growth Rate: Moderate Origin: Canada - central, Garden origin, U.S. - northeast Hardiness Rating: Zone 3: (-40 to -34 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 or on campus may include F. 'Patmore', F. 'Cimmzam', and P. 'Johnson' (compact form with small leaves).

Leaf Morphology: 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: Red, Orange Leaf(let) Terms: Shapes: Lanceolate Apices: Acuminate Bases: Cuneate Margins: Serrate

Inflorescence Type: Flowers clustered Flower Morphology: Dioecious plant Number of Petals: 0 Colour (petals): Not showy, Green-yellow, Dark-red Flower Time at Peak: Apr, May

Fruit Type: Samara Fruit Colour: Brown, Green 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:	Disease resistant, Drought resistant, Anthracnose, Stem borer insects
Specific Pests:	emerald ash borer, Gnomoniella fraxini

Location(s): (BUG) BUG garden : cv. Johnson (CGW) Community Garden West : cv. Patmore (ENA) Eastern North American planting : 240, 249 cv. Patmore (WDH) Wark-Dumais House : cv. Cimmzam q.4 Location Map

Report an Error