Trees on the Yale Nature Walk

Tree ID: 153
Date of tree entry: February 6, 2024
Meet the majestic Cedar of Lebanon, a true highlander of the tree world, that stands between 1,300 and 3,000 meters in elevation and can grow to be 40-60 feet tall! Known for its resilience, this true cedar has been a builder of empires and a symbol of strength for many countries. It's not just a tree; it's a historical pillar that has sailed through ancient Egyptian myths, fortified sacred temples, and even snagged a starring role on Lebanon’s flag. If trees were celebrities, the Cedar of Lebanon would be the timeless icon everyone wants at their garden parties!
The picture displays a red pine tree in the Marsh Botanical Garden.
Tree ID: 154
Date of tree entry: February 6, 2024
Red pine, also known as Norway pine or eastern red pine, is an evergreen conifer tree with a conical shape and a straight trunk. It is native to northeastern United States and parts of Canada, and it can be found from Newfoundland and Manitoba, all the way south to Pennsylvania, and west as far as Minnesota. It typically reaches heights of 50 to 80 feet, with some specimens growing up to 125 feet tall, though our specimen seems to be a baby at only around 12 feet so far. The bark of red pine is reddish-brown, giving the tree its name, and its needles are green, slender, and grow in bundles of two. The tree produces ovoid seed cones that have a beautiful scent! Enjoy this beautiful tree in every season and watch it grow throughout the years!
Tree ID: 151
Date of tree entry: February 6, 2024
Located in the south-east corner of the Marsh Botanical Gardens, standing tall over a bed of its fallen needles. The Eastern White Pine is the official tree of Maine and Michigan! Try pinching off a small amount of the trees resin, it smells fantastic.
The Chinese Dogwood (Cornus kousa)
Tree ID: 150
Date of tree entry: February 6, 2024
The Chinese Dogwood Tree, or Cornus kousa, is a small to medium tree originally native to East Asia. It was originally introduced to North America in the 19th century. It blooms in late April to early May. Kousa berries are soft, sweet, and edible, with a flavor that is similar to that of a persimmon. However, the seeds are attached to the pulp, making them difficult to be eaten directly. The berries have a hard rind, which is often discarded due to its bitter taste; however, the rind is also edible. The kousa is believed to have transmitted a deadly fungus to native dogwoods in the late 1900s. This anthracnose fungus started to destroy native dogwoods in the U.S. (Cornus florida). At the time, the kousa was not considered invasive, as the fruits of the kousa did not appeal to wildlife in America. Its fruit was the original food for monkeys in East Asia. The kousa population was subsequently planted in the U.S to help mediate the loss of native dogwoods, as botanists thought the population could be controlled and regulated (thinking it could not become an invasive species due to the lack of the necessary wildlife required to spread seeds and eat its fruit). In recent years, the kousa has evolved to no longer rely on monkeys to spread and reproduce. Today, the kousa is now considered invasive in the state of New Jersey, as some researchers at the University of Massachusetts Amherst believe there is often a lag between when a species is introduced and the time it takes to be invasive. The kousa was previously hailed as a substitute for the dying native dogwood population, but today, it poses a threat and is another invasive species. This particular Cornus kousa tree was approximately 5.55 m and had three large branches that branched right from the bottom. It had many different branches coming off it and a DBH of approximately 23.7 cm. As of April 22nd, 2024, it has begun to bud; however, it has not fully bloomed yet. We can expect the tree to bloom in the Marsh Botanical Gardens in the coming weeks.
Tree ID: 152
Date of tree entry: February 6, 2024
This tree is a Sawara Cypress, also known as a False Cypress, located in the Marsh Botanical Gardens. It is a gymnosperm with small, globose cones and green, scaly leaves (indicating that is an adult tree), which are typically between 1/8 and 1/4 inches long. The tree shape is irregular, and its bark exhibited the characteristic peeling quality, being light brown and revealing red strips underneath. There also appeared to be some plant matter growing on the street-facing side of the trunk. Native to Japan, the Sawara Cypress can grow to be between 8 and 37 m in height. Alongside the Hiba Cypress (Thujopsis dolabrata), Hinoki Cypress (Chamaecyparis obtusa), Koyamaki (Sciadopitys verticillata, also called the Japanese Umbrella Pine), and Nezuko Cypress (Thuja standishii), the Sawara Cypress is one of the five prized trees of the Kiso Region.
Tree ID: 165
Date of tree entry: April 27, 2023
The paperbark maple is one of the most beautiful of the maple family. Native to central China, this deciduous tree slowly grows up to 9 meters tall and 6 meters wide, with the trunk's circumference reaching 28 cm. The branches, which grow low to the ground, don trifoliate leaves, and the trunk is composed of orange to bronze papery bark that peels back on the trunk over time. The maple prefers full sun and moist soil for growth but will settle for partial shade as well. Though once common in central China, deforestation and lack of conservation has made it an endangered species in its native land, while it has become a popular ornamental tree around the United States.
Tree ID: 152
Date of tree entry: February 8, 2023
Tree ID: 155
Date of tree entry: February 13, 2023
The Cotoneaster dammeric is a species of flowering plant native to central and southern China. This shrub is a vigorous, dense, evergreen shrub with elliptic-oblong leaves. This plant blooms small white flowers in May, followed by red berries. At Yale, the Bearberry shrub is located throughout the Pauli Muarry and Benjamin Franklin walkway. The shrub is low growing and expansive covering much of the peripheral walk-way.
A black locust near SCL
Tree ID: 164
Date of tree entry: February 9, 2023
This tree has five individual structures, each reaching about the same height. Standing across from SCL, the tree frames 230 Prospect street and offers shade to those leaving the parking complex behind the Yale Interdisciplinary Center for Bioethics. A squirrel has been spotted on this tree and the surveyors are hoping it makes another appearance for their presentation.
Tree ID: 163
Date of tree entry: February 9, 2023
Tall, drooping branches. The twigs are pale gray and the bark is brown. As a deciduous tree, the Green Ash loses its leaves during the colder seasons. Once the weather became warmer, we were able to observe the Green Ash’s green leaflets and buds that grow opposite from one another. Its leaves have pointed tips and tapered bases, colored medium to dark green during the warmer weather. Its bark ridges are diamond shaped. We also were able to see some small green, or purplish flowers blooming.