Green Trail

All Tours
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A self guided walking tour of the diversity of trees found on the West Lafayette Campus, the Green Trail leads you to trees around the south part of campus, which includes the Lilly Hall of Life Sciences, Pfendler Hall of Agriculture, Agricultural Administration Building, Horticulture Building, and Nelson Hall of Food Science. Trees on any of the Tree Trails can be identified by dark brown wooden post labels.

Acer griseum (Paperbark Maple)

As the name suggests, this tree’s most outstanding feature is its bark. Much like a birch’s, the bark of this tree peels back in paper-thin sheets to show a beautiful cinnamon color. This maple is an import from China and, like most maples from Asia, remains relatively small, growing to 25 feet in height.


Quercus × 'Crimschmidt' [sold as Crimson Spire™] (Crimson Spire Oak)

This tree combines the mildew resistant leaves and red fall color of white oak with the narrow growth habit of columnar English oak. It can grow to a height of 45 feet with a crown spread of only 15 feet.

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Cedrus libani ssp. stenocoma 'Purdue Hardy' (Cedar of Lebanon)

This biblical tree was used in the temple built by King Solomon. It is a rarely planted conifer with weeping branches and blue-gray needles.

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Morus rubra (Red Mulberry)

Due to its fast growth rate and ability to grow in almost any conditions, this is often considered a weed tree. This particular tree, however, has been trained over the years to become a large, spreading shade tree.

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Quercus shumardii (Shumard Oak)

Shumard oak grows predominantly in the southeastern U.S. Although closely related to red oak, the wood from this tree is said to be stronger than that of red oak.

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Acer saccharum (Sugar Maple)

Sugar maple, named for its sweet sap, provides much more than maple syrup. These trees can be found in many yards and parks, where their graceful form and shade are appreciated. Children also enjoy playing with the familiar helicopter seeds. Sugar maple is the state tree of New York, Vermont, and Wisconsin.

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Picea abies (Norway Spruce)

This popular variety of spruce has a pyramidal form and graceful, drooping branchlets as the tree matures. The Norway spruce is often used as a windbreak in the Midwest.

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Acer palmatum var. dissectum atropurpureum 'Ever Red' (Ever Red Cutleaf Japanese Maple)

This is a small tree (15 to 25 feet tall) commonly used in landscaping because of its striking foliage, which can range from yellow to blood red depending on the cultivar.

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Asimina triloba (Common Pawpaw)

Due to the taste and texture of its fruit, this tree has been called the Indiana banana. In the open, pawpaw will grow to about 20 feet tall with a pyramidal shape. It has the distinction of growing the largest tree fruit of any tree native to the United States.


Prunus sargentii 'JFS-KW58' [sold as Pink Flair®] (Pink Flair Sargent Cherry)

This is an upright, narrow, vase-shaped tree. It has bright pink flowers in the spring and the leaves turn an attractive orange-red in the fall. It has a mature height of about 25 feet.

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Quercus falcata (Southern Red Oak)

As the name suggests, this oak typically grows in the southern portion of the United States. It is one of the most common upland southern oaks but seems to have adapted well to our cooler climate.

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Platanus occidentalis (American Planetree)

The white, stark branches of sycamore haunt the creek banks and bottomlands of the eastern U.S. Rapid growth makes the sycamore popular for ornamental and pulpwood uses. This space tree, which germinated in outer space, was planted in spring 1990 by astronaut Jerry Ross and his wife Karen (NASA food expert) to commemorate the impact 4-H experiences had on their lives.

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Ulmus parvifolia 'Emer II' [sold as Allee®] (Allee Lacebark Elm)

Allee elm is one of several varieties of lacebark elm gaining widespread acceptance as a tree well suited for urban conditions. It has a vase shape similar to American elm with an exfoliating bark that creates a beautiful mosaic of orange, tan, and gray on mature trees. This tree is resistant to Dutch elm disease and phloem necrosis.

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Pinus nigra (Austrian Pine)

Austrian pine fills an important role as an ornamental tree. This native of Europe graces roadside parks, cemeteries, and campuses throughout the U.S.

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Phellodendron amurense (Amur Corktree)

The corktree has large branches that grow in a picturesque manner. The bark is gray and deeply ridged; while it may resemble cork, it is not used in cork production. The inner bark is a brilliant yellow color.

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Quercus palustris (Pin Oak)

Pin oak is native to the Midwest but is commonly planted throughout the U.S. The tree is predominantly used for ornamental purposes. It is best known for its thick, interlacing branches.

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Quercus bicolor (Swamp White Oak)

Swamp white oak thrives on wet sites where most other oaks fail. Its timber is excellent for both decorative and heavy-duty use.

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Nyssa sylvatica (Black Gum)

This is a tree with eye-catching features throughout much of the year. It has a neat, pyramidal form that shows well in all seasons. The leaves are a dark, glossy green in the summer and turn to orange and scarlet in the fall. The alligator hide-like bark is another striking characteristic.

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Acer rubrum (Red Maple)

Red maple is commonly found throughout the eastern U.S. and into Canada. This tree seeds in readily and grows rapidly. It is a favored shade and ornamental tree with a pleasing form and brilliant fall colors.

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Ilex opaca 'Old Heavy Berry' (Old Heavy Berry American Holly)

This attractive tree displays spiny evergreen leaves and red berries that are used during the Christmas season. It’s one of the few trees that does not produce bark, but instead retains its original outer layer of cells.

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Fraxinus quadrangulata (Blue Ash)

Native to the United States, this ash can be identified by its square twigs and scaly bark. When exposed, the inner bark turns a shade of blue. It was used by early pioneers to dye cloth.

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Magnolia stellata (Star Magnolia)

This magnolia only grows to a height of 15 to 20 feet. It has large (3 to 4 inch diameter), fragrant flowers with multiple petals.

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Pinus bungeana (Lacebark Pine)

A good specimen tree with striking, showy bark, it can grow up to 40 feet tall with a spread of about 25 feet.

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Quercus imbricaria (Shingle Oak)

Shingle oak was given its name for its ability to produce a quality, durable splitshake shingle. Its leaves cling to the tree through most of the winter, creating ideal dens for squirrels.

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Liriodendron tulipifera (Tuliptree)

The stately yellow poplar dwarfs many of its eastern forest companions with a height of up to 200 feet and a diameter of up to 12 feet. When constructing log cabins, pioneers favored the tuliptree for its straightness and termite resistance. Tulip is the state tree of Indiana, Kentucky, and Tennessee.

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Cornus officinalis (Japanese Cornel Dogwood)

One of the first plants to bloom, this tree is covered with yellow flowers in early spring. Its attractive, exfoliating bark is another striking feature. This tree is located north of State Street between the Duhme Woods parking lot and Jischke Drive.

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Quercus muehlenbergii (Chinquapin Oak)

Chinquapin oak is also known as the disguised oak. Its leaves resemble those of chestnut and are commonly misidentified. The wood provides strong and attractive lumber. This tree is located north of State Street in Duhme Woods, just south of Duhme Hall.

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