Trees on the Yale Nature Walk

Tree ID: 204
Date of tree entry: February 4, 2026
The sweetgum is a native tree of the eastern United States, characteristic of riparian areas, swamp margins, and moist lowlands. Its genus name, "Liquidambar" (Latin for "liquid amber") refers to the aromatic resin that flows from the bark when cut. This resin, sometimes called American storax, has a long history of medicinal and cultural use. Indigenous peoples, including the Cherokee and Choctaw, applied it as a salve for wounds and skin irritations, brewed it as an infusion to calm the nerves, and hardened it for use as a chewing gum. A close relative, the Oriental sweetgum ("Liquidambar orientalis") of Turkey and the Caucasus, produces the storied "Balm of Gilead," a medicinal resin referenced in the Bible. In autumn, sweetgum is among the most visually distinguished trees of the eastern landscape, with a single specimen capable of displaying yellow, orange, red, and purple simultaneously. Its symmetrical, conical form and glossy, star-shaped leaves make it a valued ornamental in parks and along streets throughout its range. The tree's characteristic spiky fruit clusters, produced in abundance each season, are among its most recognizable features, remaining visible on the ground long after the leaves have fallen.
River birch in front of Kline Tower
Tree ID: 206
Date of tree entry: February 4, 2026
Alternate branching pattern, papery bark, peeling in the winter, no ridges, brown and gray bark during the winter
Black Locust
Tree ID: 201
Date of tree entry: February 4, 2026
This Black Locust Tree is found across Prospect Street from Sterling Chemistry Laboratory, and just up the hill from Ingalls Ice Rink. If you were a squirrel that lived in this tree, you would be able to see students walking to their laboratory classes in the morning and fans coming to cheer for the Yale hockey team in the evening. At lunchtime, you might even be able to smell the delicious scents of Thai and Mexican food from the food trucks by the intersection of Sachem and Prospect. At almost 70 feet tall, this particular Black Locust tree would give you an excellent bird's-eye view of campus. Despite its size, the Black Locust is actually a member of the pea family, Fabaceae. Black Locust trees produce fragrant flowers and pea pod-shaped fruits. While they are flexible with regards to soil type, and can grow in a variety of locations, Black Locust trees do require plentiful sunlight and open ground. Black Locust trees can be found throughout all of the United States except Alaska and Hawaii, as well as parts of Canada, Asia, Europe, and southern Africa. However, their normal range is limited to the southeastern United States. Black Locusts are valued for the honey produced from their flowers as well as its durable wood. However, this tree can become invasive due to its ability to produce large quantities of seeds and reproduce via root suckers.
Tree ID: 205
Date of tree entry: February 4, 2026
This massive red oak is located in the center of science hill, near the Yale Science building and in front of Kline tower. Measuring over 70 feet tall and with a canopy area of over 400 square meters, this tree provides shade and a beautiful view to all who pass by it. Like all red oak, it has fissured and sturdy gray-brown bark and numerous branches, some which dangle dangerously close to the footpath.
Tree ID: 200
Date of tree entry: February 4, 2026
The Norway Spruce is a highly versatile and resilient tree. The Norway Spruce is a conifer gymnosperm and an evergreen tree that bears pine cones. This classification signifies that the tree relies on wind pollination and bears “naked seeds” on its large cones. It is monoecious, with both male and female cones on the same tree. This tree has a pyramidal form, and its leaves are opposite. The leaves are needle-like and are attached to the tree branch through a woody structure called the sterigma or the pulvinus. The bark of the Norway spruce is thick and flaky, with gray-brown scales.
Tree ID: 202
Date of tree entry: February 4, 2026
This eastern white pine sits on Science Hill near Ingalls Ice Rink. It is in a row of other eastern white pines that decorate the slope down to the parking lot of the ice rink.
Tree ID: 184
Date of tree entry: February 4, 2025
Known colloquially as the only type of wood that could kill all vampires in The Vampire Diaries, the white oak is indeed as magical and powerful as it sounds! Not only does bark from the tree form stakes to kill vampires, but it is also used for barrels (called staves, so sometimes the tree is called a stave oak), Japanese martial arts (bokken = wooden swords), and even the US Constitution! White oaks are eudicots and quite old! Some can live past 450 years old. This is not without reason, as white oak trees are the most resistant to disease and insects, and the wood from these trees very rarely splinters when broken. Keep reading to learn more about this amazing tree!
Tree ID: 188
Date of tree entry: February 5, 2025
This Sassafras tree stands beside a hilly walkway, blending in with other young trees, including magnolias. Sassafras will always be distinctive, however, due to its aromatic smell. Unique to North America, the sweet and spicy scent of Sassafras may entice you to take a bite. But fear not, you can purchase Sassafras tea or root beer at your nearest market. Its bright green twigs and buds assert its vibrancy even in the cold of winter. Sassafras has kept us warm for centuries as a spicy addition to our cuisine. Every part of the plant is useful: its bark, leaves, and roots have found their way into Native American and US life.
Tree ID: 190
Date of tree entry: February 5, 2025
True Northeast icon, this Sugar Maple is even more gorgeous alone on Halloween, although in reality, its gorgeous cascade of blazing reds, golds, and oranges makes it one of the continent's most hallowed trees. Autumn is their season, here an absolute spectacle, reducing landscape to living paintings and drawing locals off-branching tourists by the droves for one look at New England's seasonal magic. This specific tree, however, is more than just eye candy. Early spring, when warm weather arrives but nights still snap with cool, this Sugar Maple works behind the scenes: dripping sap that, boiled, is converted to that rich, gold syrup that sweetens breakfasts across America. Some 40 gallons of sap yield one gallon of maple syrup, a testament to nature's slow, generous rhythms. Its sweet offering aside, Sugar Maple is an admirable member of local landscape citizenship. Its wide leaves offer dappled summer shade, creating cool microclimates for ferns and in-dwellers below. Its limbs offer nesting to birds, seed rewards to squirrels, and nutrient-rich components to soil when it falls. Its hardwood is also prized for strength and beauty, and is used from floor wood to fine violins. Deeply rooted in North American culture and ecology, Sugar Maple is more than all its components in total, it's not simply a tree, but an icon for strength, bounty, and cycles as well. Whether traveling to see it for leaf-peeping, syrup, or simply sitting in its shadow, there's an aspect that this tree offers in every season of the year.
Tree ID: 189
Date of tree entry: February 5, 2025
The American Beech tree is a medium sided tree that is native to eastern parts of North America. It produces beechnuts, which are eaten by squirrels, deer, and birds. When it grows, it has a large, sprawling canopy of green leaves. In the winter, it retains many of its leaves, now a curly, brown shell of their former selves, as seen in the pictures from the winter. Soon, the male reproductive flowers, called catkins, will bloom and fertilize the female flowers to produce beechnuts. American Beech trees are monoecious, meaning they have male and female flowers on the same tree.

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