Butternut
Juglans cinerea L.
Noyer cendré

Native to Eastern North America, including southern New Brunswick, Quebec, and Ontario.

Leaf: Compound, opposite, 11 ⇔ 17 leaflets (30 ⇔ 60 cm with stalk), lanceolate, yellowish green. Rough above, paler/hairy underside. Toothed.
Buds: terminal bud large, elongated, flat 1.2-1.8 centimeters length. Dull yellow, hairy. Lobed external platelets.
Twig: Chunky, orange yellow. More mature orange reddish spotted. Hairy. Pith is reddish brown.
Flowers: (Catkins) Drooping 6 ⇔ 14 centimeters, 8 ⇔ 12 stamens. Flower clusters of 4 ⇔ 7 erect at shoot tip, pinkish reddish/brown.. almost magenta.
Fruits: Smells like citrus. Sticky, hairy, elongated or nearly perfectly ball shaped. Inside is deep dark brown and fibrous around nut.

Rhytidome: Smooth when young; grayish, shallow dark grooved ridges develop
Wood: Light, soft, grained, reddish brown.
Form: Medium. 25 m high, 75 cm diameter, ~80 years old. Trunk stout/forked.
Root system is deep, wide spreading, usually with a taproot.
Habitat: Moist, fertile soils; lowlands and slopes. Also a variety of sites such as dry, rocky soils (limestone for minerals).
Shade Tolerance: Intolerant (needs full sun).
Notes: Wood is used in cabinetry and turnery.
Trees are increasingly attacked by butternut canker (Sirococcus clavigignenti-juglandacearum), a fatal disease.