Memorial Union Trail

Memorial Union Tree Trail Map Persian Parrotia Capital Pear White Oak Red Oak Ohio Buckeye European Horsechestnut Red Horsechestnut Red Horsechestnut Hardy Rubber Tree Kentucky Coffee Tree Bur Oak Overcup Oak Cherrybark Oak Green Giant Arborvitae Allée Chinese Elm Hackberry Basswood Yellowwood Persimmon Jefferson American Elm Scholar Tree -Chinese Pistache Pin Oak Three flower Maple Baldcypress Trident Maple Autumn Flame Red Maple Purpleleaf Beech Butterflies Magnolia Hedge Maple American Holly Flowering Dogwood Winter King Hawthorn Giant Dogwood

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Giant Dogwood – Cornus controversa
The most notable features of this tree are its size and form. Giant Dogwood can reach 45 feet tall and its branching structure is very horizontal which makes for a strong architectural statement. The white flowers are one-half inch wide and the fruits are blue-black.

Wally Pfeffer - MU, Chamber and Columbia Volunteer

Cornus controversaCornus controversa

Winter King Hawthorn – Crataegus viridis ‘Winter King’
A small ornamental tree that has creamy-white flowers in May and small, glossy-red fruit that persists into the winter.  The trunk also exfoliates, uncovering an orange inner bark.

Adopted by Michael and Paula Nolan

Crataegus viridis ‘Winter King’Crataegus viridis ‘Winter King’

Flowering Dogwood – Cornus florida
As Missouri’s State Tree, this small ornamental has year-round appeal with its large white bracts (often mistaken for flowers), red fruit, reddish-purple fall color and distinct horizontal branching, which is particularly evident in winter.

Adopted by Xena

Cornus florida

American Holly – Ilex opaca
A slow-growing, pyramidal evergreen that can reach 50 feet in height. Its glossy, green leaves and red berries make it a standout on the winter landscape. As only female trees produce berries, a male tree must be planted nearby to ensure pollination.

To honor my father, Tom Fairlie. With love, Kristen.


Ilex opacaIlex opaca

Hedge Maple – Acer campestre
A slow-growing maple valued for its small size, resistance to pests and ability to grow in dry, alkaline soils. It is a good choice for the home lawn or where utility lines limit overhead growing space. It is frequently used as a hedge in Europe.

Acer campestre

Butterflies Magnolia – Magnolia ‘Butterflies’
This yellow-flowered form is the result of a cross between Magnolia acuminata and M. denudata ‘Sawada’s Cream’. It grows to 20 feet tall and has a deeper yellow than many of the other yellow-flowered magnolias. When in bloom, it is a true show-stopper.

Magnolia ‘Butterflies’Magnolia ‘Butterflies’

China Snow Tree Lilac – Syringa pekinensis ‘Morton’ CHINA SNOW
Peking Lilac is a reliable easily grown small early summer flowering tree. The large panicles of white scented flowers, bronze fall foliage and amber peeling bark all recommend this as a desirable tree.

Purpleleaf Beech – Fagus sylvatica ‘Purpurea’
A cultivar of European Beech with leaves that are a coppery-purple color when young, and purple-maroon when mature. With the heat of summer this colorful foliage often fades to greenish-purple. The mature height is 60 to 100 feet and the tree can live for 300 and more years. The smooth gray bark adds winter interest.


Autumn Flame Red Maple– Acer ruburm 'Autumn Flame'
Autumn Flame Maple is a male selection, without seed, that has compact foliage and excellent scarlet fall color.

Trident Maple – Acer buergeranum
Trident maple is a medium-sized tree whose bark peels away in patches creating gray, brown and orange mottling. Its glossy, three-lobed leaves turn yellow, orange and red in the fall. Even though it is a handsome patio or lawn tree, its abundant seedlings can be a nuisance.  It is native to Japan.

Acer buergeranum

Baldcypress – Taxodium distichum
Although its native habitat is low swampland,  Baldcypress is adaptable to many soil types.  Its adaptability and fine-textured leaves make this deciduous conifer an interesting landscape specimen for open areas.

Taxodium distichumTaxodium distichum

Three-flower Maple – Acer triflorum
This 20’-tall tree displays weakly exfoliating bark when young which turns a nice amber color as it ages.  Its flowers are in clusters of three and its leaves change to rich yellows and reds in the fall. It makes a nice tree for the small home lawn.

Adopted by Ruth, Ed, Jessica and Jonathan Brent

Acer triflorum

Pin Oak – Quercus palustris
A very popular landscape tree that is easily transplanted and fast growing. Its pyramidal shape and drooping lower branches give it a distinctive form. Planting in alkaline soils can cause iron chlorosis, a significant problem in this area. This tree may be the largest tree on campus.

Chinese Pistache – Pistacia chinensis
Also known as Pistachio, this medium-sized tree is good for poor, droughty soils.  Its pinnately-compound leaves can turn a brilliant fall color but this trait varies from tree to tree and occurs late in the season. 

Pistacia chinensisPistacia chinensisPistacia chinensis

Scholar Tree – Sophora japonica
This is a good tree for city conditions as it tolerates poor soils and air pollution. The creamy-white flowers appear in mid-summer and are followed by small yellow seed pods that add fall interest.

Sophora japonicaSophora japonica

Jefferson American Elm – Ulmus americana'Jefferson'
This is a clone from a tree that grows along the National Mall in Washington D.C.  Planted in the 1930s, it remains unscathed by Dutch elm disease

Persimmon – Diospyros virginiana
Found frequently along roadsides and fence lines, this native tree produces large, fleshy fruit that is edible after a fall frost sweetens its otherwise bitter pulp. Persimmons are difficult to transplant and seldom survive outside their natural habitat.

Diospyros virginianaDiospyros virginiana

Yellowwood – Cladrastis kentukea
Yellowwood has white flowers in June, a soft-green leaf color, and sculptured branching that forms a vase shape. Its wood is valued for gunstocks and cabinetry.

Cladrastis kentukea

Basswood – Tilia americana
Basswood is a fast-growing, large tree that grows readily in most soil types and is native to the northeastern quadrant of the United States.  Also known as American Linden, it is an important timber species used for many products including musical instruments. Native Americans made rope and thread from its inner bark.

Hackberry – Celtis occidentalis
This large tree is a good choice where growing conditions are harsh. It produces small purple berries that are a valuable food for game birds, squirrels and raccoons.

Celtis occidentalisCeltis occidentalisCeltis-occidentalis-leaf

Allée Elm – Ulmus parvifolia ‘Allée’
Chinese Elm is a fine-textured tree with bark that exfoliates in a puzzle-like pattern revealing shades of green, orange, and gray. It is a large, fast-growing, wide spreading tree and is considered good for urban environments because it is tolerant of a wide range of soil conditions. This cultivar has an irregularly fluted trunk.

Ulmus parvifolia ‘Allée’Ulmus parvifolia ‘Allée’

Green Giant Arborvitae – Thuja plicata ‘Green Giant’
Western Arborvitae is a very tall and narrow evergreen with fan-shaped sprays of leaves. It is a fast-growing columnar tree and makes a formal statement in the garden.

Thuja plicata 'Green Giant' Thuja-plicata-‘Green-Giant’

Cherrybark Oak –Quercus pagoda
This large oak can grow 60' to 110' and tolerates seasonal wet soil but not swampy areas. The small acorns are food for wildlife and the hard wood is prized for furniture making. The fall red foliage is an ornamental addition to this large adaptable shade tree.


Overcup Oak – Quercus lyrata
This medium-sized tree is closely related to bur oak. It gets its common name from the acorn cap which almost completely encloses the acorn.  It transplants easily, grows fast and tolerates poor soil conditions especially wet area. 

"The favorite of J.D. Baldridge"


Bur Oak – Quercus macrocarpa
This tree has a slow growth rate, typically less than one foot per year during its 30-year juvenile stage. In 300 years, it may reach 80 feet in height. Bur oak wood is hard, heavy and useful for furniture, flooring and boat docks.


Kentucky Coffeetree  –  Gymnocladus dioicus
This large tree has huge compound leaves with small leaflets that, during the summer, give the tree a lacy appearance. In winter, without its leaves, the tree’s thick twigs produce a coarse silhouette. Its seeds are sometimes used as a coffee substitute; it is believed roasting them neutralizes toxins they contain.


Rubber Tree  –  Eucommia ulmoides
This tree produces latex, which was once used to manufacture rubber. When tropical sources of latex were disrupted during World War II, the government planted orchards of these trees in Missouri to ensure a domestic supply. Synthetic materials were developed, however, and the industry was abandoned.


Red Buckeye  – Aesculus pavia
This short, understory tree with dark, lustrous-green leaves is a popular ornamental. In May, it displays beautiful clusters of red flowers. Its large, brown seeds are poisonous, which is typical of the various Aesculus species.

Aesculus pavia

Red Horsechestnut  –  Aesculus x carnea
This 30- to 40-foot-tall hybrid of Horsechestnut and Red Flowering Buckeye is one of England’s most popular ornamental trees. It has eight-inch clusters of red and rose-colored flowers that appear in May and its seeds produce true-to-type plants, which is unusual.

Adopted by the Munson Family


Aesculus x carnea Aesculus x carnea

European Horsechestnut –Aesculus hippocastanum
This is a 50’ to 75’-tall tree best planted in areas with large landscape such as parks and college campuses. The flowers, up to 12”-long, are very showy in the spring but fall color is a dull yellow at best.  European Horsechestnut is native to Bulgaria, Greece and Albania.

Ohio Buckeye  –  Aesculus glabra
Ohio Buckeye is one of the first trees to leaf out in the spring and one of the first to drop its leaves in the fall. The spiny fruit holds the glossy brown nut cherished by children. Native Americans named this tree because the seeds resembled the eye of a buck (male) deer.  This tree is best for natural areas.

Red Oak – Quercus rubra
Red Oak is a fast-growing tree, suited to large open areas.  The excellent reddish fall color is an attractive feature. It is an important source of wood used commercially for flooring, furniture, veneer and interior trim.

Quercus rubra

White Oak – Quercus alba
One of our native woodland giants, this slow-growing, long-lived tree is typically broad-branched and eventually spreads to 100 feet in diameter. White oak and hickory made up the climax forest found by our ancestors in this area.

Ronald Turner - Service to Missourians through extension

Quercus alba

Capital Pear – Pyrus calleryana ‘Capital’
This selection produces white flowers in spring, but unlike the Bradford Pear, its growth is columnar and it lacks the spectacular reddish-purple fall color. It is recommended that we plant no more  Callery pear tree cultivars because they are hybridizing with each other and producing a wild population of hybrid pear trees that are invading our woodlands.

Adopted in Honor of John H. Clay, B.S. '73

Pyrus calleryana ‘Capital’Pyrus calleryana ‘Capital’

Persian Parrotia – Parrotia persica
This small specimen tree is reputed to have excellent fall coloring of yellow, orange and scarlet, but has yet to demonstrate it in our area.  It has an attractive mottled bark of gray, green, white and brown and is praised as a nearly pest-free landscape tree.

In Memory of Andrea Frances Beasley, 1934 – 2009

Parrotia persica Parrotia persicaParrotia persica

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