Trees on the Yale Nature Walk

Japanese Stewartia
Stewartia pseudocamellia
Tree ID: 1
Marsh and Farnam Gardens
Date of tree entry: June 26, 2014
A multi-stemmed, deciduous tree with a rounded columnar form, stewartia features stunning bark that exfoliates in strips of gray, orange, and reddish brown once the trunk attains a diameter of 2 to 3 inches. Serrated foliage emerges bronzy purple in spring, develops into a dark green by summer, and turns red or orange in the fall. In midsummer, "glamorous" white camellia-like flowers open in random succession and are followed by pointed brown seed pods, which are persistent but not very ornamental.

Japanese Falsecypress
Chamaecyparis pisifera
Tree ID: 14
Marsh and Farnam Gardens
Date of tree entry: April 18, 2014
The Japanese falsecypress, also commonly known as the sawara falsecypress, is a medium to large-sized conifer. The tree is native to Japan but its planting potential has a widespread distribution across North America. The origin of its genus name "Chamaecyparis" is from the Greek words "chamai," meaning low growing, and "kyparissos," meaning cypress, which references its habitat and relationship to other genus members. Its species, "pisifera," means "bearing pea-like seeds," because of the small, rounded seeds and cones. The smaller rounded cones with fewer seeds are the characteristic that distinguishes the false cypress from the true cypress.

Weeping Beech
Fagus sylvatica
Tree ID: 13
Marsh and Farnam Gardens
Date of tree entry: April 18, 2014
The weeping beech is a variety of European beech developed in England in 1836 and first introduced to the States in 1847. This particular weeping beech drapes its branches over the gentle slope of Farnam Gardens on Prospect Street. It’s hard to miss—gnarled roots emerging around the trunk and knobby branches bending low to the ground, like some kind of living dinosaur! In the late spring, summer and into autumn, the canopy creates an umbrella-shaped room, almost fully enclosed on all sides, dark green leaves creating the roof and walls. This tree appears actually to be three individual trees but in fact beeches reproduce vegetatively (they create clones by rooting many branches from one tree) so these three “trees” are identical and come from the mother tree, farthest up the hill.

Dead Man's Fingers
Decaisnea fargesii
Tree ID: 10
Marsh and Farnam Gardens
Date of tree entry: April 18, 2014
Decaisnea fargesii is commonly known as dead man's fingers or the blue bean tree. This shrub is native to western China and other western Asia countries such as Nepal, Bhutan, and northeastern parts of India, though its common names originate from Ireland. This shrub is often as wide as it is tall, and this particular measured to 7m in the winter of 2014. It commonly flowers in the summer while its fruit ripen in the fall around Halloween. This plant is distinctive for its blue sausage-shaped fruit, which give its various common names. Although the fruit is edible, the tree mostly serves an ornamental or decorative purpose when grown in non-native parts of the world.

White Fringe Tree
Chionanthus virginicus
Tree ID: 12
Marsh and Farnam Gardens
Date of tree entry: February 11, 2014
The white fringe tree, Chionanthus virginicus, is a small but beautiful tree found in the Marsh Gardens. This tree is characterized by its resplendent white flowers, which bloom in May or June. The tree also has small olive-like fruit, which develops in August or September. It is deciduous and loses its leaves in the winter. This exposes the smooth gray bark. The white fringe tree is found throughout the eastern United States from Texas to Florida and south of New York. This tree is native to Missouri.

Ginkgo/Maidenhair Tree
Ginkgo biloba
Tree ID: 24
Cretaceous Garden
Date of tree entry: April 17, 2014
This tree is considered a "living fossil", meaning it looks very similar to fossils that are millions of years old. Interestingly, it is the only surviving tree in the entire order of ginkgoales: the order, family, genus, and species are all used to describe a single type of tree. Perhaps more interestingly, ginkgo trees are older than the T. Rex.

Japanese Pagoda Tree (Scholar Tree)

Sophora japonica
Tree ID: 15
Marsh and Farnam Gardens
Date of tree entry: April 16, 2014
Despite its name, this magnificent tree hails originally from China, but was likely planted around early Japanese Buddhist temples. It proudly overlooks the Yale Farm, and its spreading canopy provides a lovely patch of shade in the summer for student farm interns to eat lunch and nap under. It is an "urban-tough" tree, highly recommended for city street planting because it can tolerate the heat and pollution of summer air in a bustling city like New Haven. Careful; the base of its trunk is guarded by a thorny shrub that eagerly tore holes in its surveyor's pants as she took its DBH.

Sugar Maple
Acer saccharum
Tree ID: 17
Whitney and Edwards
Date of tree entry: April 13, 2014
The Sugar Maple is known primarily for its sweet sap which can be processed into syrup and its colorful leaves which change to hues of crimson, orange, and yellow in the fall. Many people think that the Canadian Flag takes its image from the sugar maple, but it is instead recognizable as a fusion of the different maple leaves.

Cornelian Cherry
Cornus mas
Tree ID: 28
Cretaceous Garden
Date of tree entry: April 13, 2014
Between the entrances of the Peabody Museum and Yale's Environmental Science Center, this small tree brings great beauty to the area with its bright yellow flowers, greenish twigs, and dark brown branches. Its scientific name, "Cornus mas", comes from the word cornu which means “horn” and refers to the hard wood of the Cornelian cherry, and the word mas translates to male and refers to the adaptability of the species.

Yellowwood
Cladrastris kentukea
Tree ID: 5
Marsh and Farnam Gardens
Date of tree entry: April 12, 2014
This yellowwood tree is found on the hill leading down to Marsh Botanical Gardens. Yellowwood is a medium sized (about 30 to 50 feet tall) tree that is native to North America. The tree is famous for its beautiful white flowers in late spring, early summer and yellow foliages in the fall. However, the tree is not found easily in the wild, and most wild yellowood population exists near limestone cliffs in the Midwest states like Kentucky, Tennessee, and North Carolina.

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