Tulip Tree, Tulip Poplar, Yellow Poplar, Whitewood
Kingdom Plantae > Division Tracheophyta > Class Magnoliopsida > Order Magnoliales > Family Magnoliaceae > Genus Liriodendron > Species Liriodendron tulipifera · Magnoliaceae (Magnolia family) · Simple, broadleaf deciduous
Species
Liriodendron tulipifera
Leaf Type
Simple, broadleaf deciduous
Family
Magnoliaceae (Magnolia family)
Shape
Uniquely 4 to 6 lobed with a broad, flat, notch-like (truncate or broad-emarginate) apex resembling a stylized tulip or shirt silhouette.
Size
Approximately 5-7 inches long and 4-6 inches wide, which falls directly within the typical adult range of 3 to 8 inches in length and width.
Margin
Entire along individual lobes, but overall deeply lobed with smooth-edged sinus curves.
Arrangement
Alternate along the branch, attached via long, slender petioles (leaf stalks).
Rarity
Very Common in native forests and urban parks throughout eastern North America.
Color & Pattern
Bright to deep shiny green on the upper surface with lighter silvery-green underneath; turns brilliant golden yellow in autumn. Minor necrotic brown spots and dark edge bruising are visible on this specimen.
Venation Pattern
Palmate-pinnate venation with a strong central midrib branching into major lateral veins for each broad lobe and a fine reticulate (net-like) mesh overall.
Texture & Surface
Smooth, slightly leathery (coriaceous), and glossy on the upper surface (adaxial), slightly paler and glabrous underneath.
Description
A magnificent tall deciduous tree capable of reaching heights over 100 feet with a straight, tall trunk and smooth grayish bark that becomes deeply furrowed with age. Leaves have an unmistakable tulip-like silhouette. In late spring, it produces large tulip-shaped greenish-yellow flowers with orange bases at the inner petal base, followed by cone-like dry aggregate fruits containing winged samaras.
Key Features
Distinctive truncated (flat or notched) leaf tip; duck-bill-shaped terminal buds; large greenish-yellow tulip-like flowers in late spring; cone-like fruit structures that persist through winter.
Habitat
Prefers deep, rich, moist, well-drained soils along stream banks, fertile bottomlands, and lower mountain slopes in full sun to partial shade.
Geographic Range
Native to eastern North America, from Southern Ontario and Vermont south to Florida and west to Illinois, Missouri, and Louisiana; widely planted globally as a large shade tree.
Condition Notes
Fair to Good. The leaf shows light mechanical damage, marginal browning/necrosis likely due to heat stress or minor fungal leaf spot, but retains good structural integrity and rich green color.
Interesting Facts
Despite being called 'Tulip Poplar', it is a true member of the Magnolia family, not a poplar. George Washington planted tulip trees at Mount Vernon that still stand today. It is the state tree of Indiana, Kentucky, and Tennessee.
Medicinal & Uses
Historically, Native Americans and early settlers used the inner bark medicinally as a tonic and fever reducer containing liriodendrine. Highly valued commercially for soft, light, fine-grained wood (often sold as 'yellow poplar' or 'whitewood') used in cabinetry, veneer, and construction.
Ecological Role
Important nectar source for honeybees, ruby-throated hummingbirds, and native pollinators. Serves as a host plant for larvae of the Eastern Tiger Swallowtail butterfly and Promethea silkmoth. Seeds feed squirrels, mice, and songbirds.
Similar Species
Chinese Tulip Tree (Liriodendron chinense) features more deeply cut waist-like lobes; Red Maple (Acer rubrum) and Sycamore (Platanus occidentalis) have palmately lobed leaves but possess pointed tips rather than flat notched apexes.
Foraging Tips
Look for very tall, straight trunks in eastern hardwood forests. Look on the forest floor in spring for fallen tulip-shaped petals or in autumn for golden square-shaped leaves and winged seeds.
Toxicity Warning
Non-toxic to humans, horses, and household pets under normal conditions, though the bark contains alkaloids that can cause mild stomach upset if consumed in large quantities.