General Information
Scientific Name: Acer nigrum Michx.
Common Name(s): Black Maple, Black Sugar Maple
Family: Sapindaceae (Soapberry family)

Native Range: Found in the southeastern parts of Canada and extending through the northeastern United States and into the central U.S. (primarily along floodplains and bottomlands).
Introduced Range: Not known to be introduced elsewhere.
Canadian Plant Hardiness Zones: Generally Hardy in Zones 3-7, most common in southern Ontario (especially around areas with fertile bottomlands).

Size & Growth:
Typical Height: 15-25 m (50-82 ft)
Maximum Recorded Height: 30 m (98 ft)
Trunk Diameter (Average & Max): 30-60 cm (12-24 inches) average, up to 90 cm (36 inches) maximum
Growth Rate: Medium
Typical Lifespan: 100-150 years
Record Age: 200 years

Quick Recognition Features
Notable Leaf, Bark, Cone, or Twig Features:
Leaf: Typically 3 lobes (occasionally 5), with shallow notches. Dark green on top and yellowish-green underneath with brownish, velvety hairs. Leaves often appear wilted.
Bark: Dark gray with narrow, vertical ridges, deeply furrowed and sometimes scaly.
Twigs: Dull appearance, typically not glossy like sugar maple.
Buds: Blunt, dark brown, hairy.

Reproduction & Life Cycle
Seed Maturity: 15-25 years (similar to sugar maple)
Reproductive Cycle: Produces seeds annually, with significant crops every 2-3 years.
Pollination Method: Primarily wind-pollinated, with some insect assistance.
Seed Dispersal Mechanism: Wind-dispersed via winged seeds.
Seed Dormancy Requirements: Cold stratification typically required for seed germination.

Environmental Preferences
Soil Preferences: Prefers moist, fertile, well-drained soils, particularly those found in floodplains and bottomlands.
Water Needs: Moderate to high water requirements, thrives in moist environments.
Drought Tolerance: Moderate; can survive dry periods but prefers moist conditions.
Flood Tolerance: High, often found in floodplains.
Shade Tolerance: Tolerates some shade but prefers partial sunlight.
Root System Type: Deep, taproot system.
Climate Adaptability: Prefers temperate climates, adapted to both colder and warmer conditions in its range.

Physical & Chemical Properties
Wood Density: 700-800 kg/m³ (43.7-49.9 lb/ft³)
Strength Rating: High (similar to sugar maple)
Decay Resistance: Moderate; susceptible to some fungi and pests but generally strong.
Fire Resistance: Low; not especially fire-resistant.
Fire Regeneration Ability: Low; typically does not regenerate well from fire but can regenerate from sprouts after damage.

Ecological Role & Interactions
Wildlife Value: Provides food and habitat for various birds and mammals. The sap can be used by squirrels and other small animals. The tree offers shelter and nesting sites.
Companion Species: Often found alongside sugar maples, eastern white pine, and various other hardwoods like red oak and American beech.
Invasive Status: Not considered invasive.

Threats: Susceptible to pests like the maple borer and diseases like maple anthracnose. Climate change and changes in water regimes may impact its health in floodplain habitats.

Human & Cultural Uses
Traditional Uses: Used by Indigenous peoples for medicinal purposes (e.g., as an anti-inflammatory), similar to sugar maple. Sap has been used for syrup production.
Modern Uses: Timber used for furniture, cabinetry, and flooring. Often considered a second-tier species in timber production after sugar maple.
Symbolism/Mythology: No specific cultural symbolism distinct from the sugar maple, although related to Canadian and Native American traditions involving maple syrup.

Additional Notes & Fun Facts
Unique Features: Black maple has a similar appearance to sugar maple, but its leaves often look more "wilted," and the bark is darker and more deeply furrowed.
Interesting Historical Facts: Historically, black maple was not differentiated from sugar maple until more recent botanical classification work. It is sometimes considered a variety of sugar maple.
Rare/Endangered Varieties: No known rare or endangered varieties of black maple, though some isolated populations may be affected by habitat degradation.