Scientific Name:	Juglans nigra
Pronunciation:	JOO-glanz NYE-gruh
Common Name:	black walnut
Family Name:	Juglandaceae
Plant Type:	Tree - deciduous
Key ID Features:	Large tree; leaves oddly pinnate, commonly with 15 (11 - 23) leaflets; fruit is a large brown to yellow and drupe-like. Winter ID: leaf scar large (8 mm), resembles a monkey face; buds small, dark brown; new growth and buds pubescent.
Course(s):	HORT 1155

Habit: Horizontal, Open, Spreading Form: Oval - horizontal, Round Texture: Coarse Mature Size: Height: 22 - 30m Spread: 15 - 25m Growth Rate: Moderate Origin: Canada - eastern, U.S. - northeast Hardiness Rating: Zone 5: (-29 to -23 C) Exposure: Full sun Soil/ Growing Medium: Well-drained Water Use: Moderate Landscape Uses: Herb, Specimen plant, Tall background, Wildlife food, Winter interest Additional Info: Google

Leaf Morphology: Form: Compound Arrangement: Alternate Texture/ Venation: Soft flexible Surfaces: Distinctive smell, Lustrous Compound Leaf: Odd-pinnate Colour in Fall: Yellow Leaf(let) Terms: Shapes: Lanceolate Apices: Acuminate Margins: Serrate Additional Info: Spectacular fall colour, 15 (-23) leaflets per leaf

Inflorescence Type: Floriferous, Catkin (ament) Flower Morphology: Monoecious plant Number of Petals: 0 Colour (petals): Showy, Green, Yellow Flower Scent: None Flower Time at Peak: Mar, Apr

Fruit Type: Nut, Drupe Fruit Colour: Yellow, Brown Fruiting Time: Sep, Oct Additional Info: Not showy, Accessory tissue, Edible, The enclosing husk tissue is formed from fused bracts. This and the hard endocarp shell making them look very much like drupes, but they are still technically nuts with accessory bract tissue. But alsobecause of the hard endocarp many consider them drupes.

Bark Morphology: Showy, Deeply fissured Bark or Stem Colour: Brown, Black     Leaf Scar Shape: U-shaped

Propagation:	Seed, Grafting
Pest Susceptibility:	Anthracnose, Dieback, Mites, Mold, Root rot, Scale insects, Bacterial leaf spot
Specific Pests:	Gnomonia leptostyla

Location(s): (BUG) BUG garden : q.2 seedlings - juvenile foliage - confirm ID (JPL) Juglans PLanting : 138 Location Map

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