Tulip Tree/Yellow Poplar

Scientific Name: Liriodendron tulipifera
Common Names: Tulip-Tree, Yellow-Poplar, Tulipier de Virginie
Family: Magnoliaceae (Magnolia Family)
Native Range: Southern Ontario (south shore of Lake Huron, north shore of Lake Erie, Niagara Peninsula); also planted as an ornamental beyond natural range
Typical Height: 35 m (115 ft)
Maximum Recorded Height: Larger in the U.S.
Trunk Diameter: ~100 cm
Growth Rate: Fast growing
Lifespan: Typical 150 years
Seed Maturity: 10–15 years
Reproductive Cycle: Nearly every year.
Soil Preferences: Deep, rich, nutrient enriched, moist soils. Found along streams or swamps. Naturally mixed with other broadleaf trees (particularly eastern hemlock).
Water Needs: Moist conditions; intolerant of drought
Hardiness Zones: CA5, NA4
Fire Resistance: Low
Fire Regeneration: No special adaptations, tolerant of low to medium intensity fires.
Shade Tolerance: Low.. Intolerant of shade
Strength Rating: Light, soft, weak, fine-grained; predictable, uniform, straight-grained, easy to work
Decay Resistance: Low
Pest/Disease Resistance: Generally free of pests and diseases
Climate Adaptability: Tolerates temperate climates; thrives in moist, fertile soils
Uses: Timber (construction, furniture, cabinetry, veneers, millwork); ornamental; nectar source for bees
Ecological Role: Provides food for wildlife via seeds; mixed with other broadleaf species in forests; contributes to forest canopy
Cultural/Historical Significance: Valued for predictable, stable wood; ornamental planting in urban and rural habitats..
Bark: Young trees smooth, dark green with small whitish spots; mature bark brownish with deep intersecting ridges and grayish fissures
Leaves: Alternate, simple, 7–12 cm long; 4–6 lobes, broad shallow notch at tip; light green turning yellow in autumn; prominent stipules in spring
Flowers: Large, showy, solitary, tulip-shaped, greenish-yellow, 4–6 cm long; appear at shoot tips after leaves; insect-pollinated; nectar source for bees
Fruits: Winged seeds, 3–5 cm long, in spindle-shaped cone-like aggregates 5–7 cm long; disintegrate when ripe; wind-dispersed
Seeds: Winged, small; eaten by birds and small mammals
Growth Form: Large, straight trunk with little taper; branch-free for two-thirds of height; crown small, narrow, compact in forest; long and irregular in open; deep, wide-spreading root system
Reproductive Features: Insect-pollinated; seed crops nearly every year; seeds wind-dispersed
Unique Features: Leaves notched at tip (distinctive), flat terminal bud with 2 scales, tulip-like flowers, predictable straight-grained wood
Foliage Details: Light green turning yellow in autumn; 4–6 lobes per leaf; broad shallow tip notch
Cones/Fruits: Winged seeds in cone-like aggregates; persist until disintegration at maturity
Bark: Smooth green with spots when young; deeply ridged and fissured when mature
Threats: Few pests or diseases; minimal maintenance required
Carbon Sequestration: High; large, fast-growing tree
Wood Highlights: Frequently described as straight-grained; very uniform texture with little contrast; homogeneous in strength and machining properties; praised for being predictable, stable, and easy to work