Indiana State Tree: Tulip Tree

The Tulip Tree is Indiana's official state tree. Also called yellow poplar, this deciduous hardwood grows throughout Indiana. The tree reaches heights of 100 feet or more with straight trunks.

The leaf is distinctive with four lobes shaped like a tulip. Each leaf measures four to eight inches long. The bark is gray-brown with deep furrows on mature trees. Yellow-green flowers with orange centers bloom in May and June.

Tulip Tree is the tallest eastern hardwood. Some specimens reach 165 feet in height. The tree grows rapidly and can live 300 to 500 years. Soft white wood has high commercial value.

Common names include Tulip Tree, Tulip Poplar, Yellow Poplar, and Whitewood. The scientific name is Liriodendron tulipifera. Liriodendron means 'lily tree' in Greek. Tulipifera means 'tulip-bearing.'

Early settlers called it yellow poplar for the yellowish wood. The name tulip tree comes from the tulip-shaped flowers and leaves. It is not a true poplar despite the common name.

The Indiana General Assembly recognized Tulip Tree as official state tree on March 3, 1931. This designation came at the end of a complex history involving both tree and flower symbols.

The tulip tree leaf appeared in the state seal border since the 1800s, before any official state symbol legislation. This early recognition showed the tree's importance to Indiana identity.

From 1923 to 1931, the tulip tree blossom was Indiana's official state flower. In 1931, legislators wanted to adopt a different flower. The solution: make the tulip tree the state tree and adopt zinnia as state flower. This compromise honored both the historic tree and a new floral symbol.

Indiana honored the tulip tree in three distinct ways across different periods. First, the distinctive four-lobed leaf appeared in the state seal border designed in the 1800s. This preceded any state symbol legislation.

Second, the General Assembly designated the tulip tree blossom as official state flower in 1923. The yellow-green flowers with orange centers represented Indiana for eight years.

Third, in 1931 the tree itself became the official state tree. This triple honor is unique among state symbols. No other state gave such layered recognition to a single tree species.

Indiana's current state flower is the Peony (Paeonia), designated in 1957. The peony replaced the zinnia, which had been state flower from 1931 to 1957. Before that, the tulip tree blossom was state flower from 1923 to 1931, and the carnation from 1913 to 1923. Indiana has changed its state flower multiple times but kept the same state tree since 1931.

The leaf shape is the clearest identification feature. Each leaf has four distinct lobes with a flat or slightly notched top. The shape looks like a tulip viewed from the side. No other native tree has this distinctive leaf shape.

Flowers bloom high in the canopy from April to June. Each flower is two to three inches long with six yellow-green petals. An orange band marks the base of each petal. The flowers resemble tulips.

Mature bark is gray-brown with deep vertical furrows. Young trees have smoother, lighter bark. The trunk grows very straight, often without branches for 80 to 100 feet in forest conditions.

Native Americans carved tulip tree trunks into canoes. The light, easily worked wood created large dugout canoes from single trees. Some canoes measured over 40 feet long.

Early settlers used tulip tree timber for houses, barns, and furniture. The soft white wood cuts and shapes easily. Today the wood substitutes for scarce softwoods in furniture frames and interior construction.

The tree provides wildlife value. Flowers produce nectar for honey. Seeds feed songbirds, game birds, rabbits, squirrels, and mice. White-tailed deer browse on seedlings. The tall trunks offer nesting sites.

The Tulip Tree is often associated with Indiana's pioneer heritage and natural resources. Early settlers depended on the abundant tulip tree forests for shelter and transportation. The tree's rapid growth and towering height suggest strength and aspiration. Its triple honor across seal, flower, and tree shows deep cultural significance in Indiana.