Eastern Redbud

A moderately sized tree = an Eastern Redbud - facing Kline Tower. It is winter, and its branches are bare; snow surrounds it.
Basic Information
Tree ID: 
203
Family: 
Genus and species: 
Description: 
This Eastern Redbud is between the pathway heading to Marx Library and the sidewalk connected to Kroon Hall. Its pink flowers are spectacular, and it provides food for butterflies and moths in the form of leaves, bees in the form of nectar, and birds, squirrels and humans in the form of seed pods.
Surveyors: 
Caden Montini and Jonathan Choate
Location
Collected Data
Tree shape: 
Vase
Date of tree entry: 
02/04/2026
Height: 
5.65 m
Diameter at breast height: 
0.41 m

There are too many multiple trunks to accurately measure the DBH, so this is just an estimate
Bark
The tree's bark is darkish brown or grey in color. It appears patchy in some places, almost like it is peeling showing mixed light and dark areas. The bark starts out smooth in texture; as it gets older, it acquires ridges and scales and the bark becomes thicker.
Twigs & branches
The branches on the tree are slender, somewhat delicate, and often zigzag rather than being straight. They are extremely smooth, and as they age they begin to darken, turning from a light brown to a dark grayish brown. In a more macroscopic view, the branches arch outwards giving it an extremely pleasant shape once its flowers bloom.
Foilage
The Redbud has alternating heart-shaped leaves. Specifically, leaves have net-like venation, featuring a cordate base, entire margins, and mucronate apices.
Reproductive Structures
The Eastern Redbud reproduces using fruits, seeds, and perfect (bisexual) flowers. The flowers are bright pink or purple and have a small, pea-like shape. They have abundant nectar and attract butterflies and, primarily, bees (as long as they have a long enough proboscis) for pollination. Often growing in clusters along the branches and sometimes on the trunk, these flowers bloom in the early spring before leaves emerge.
Fruit
Cercis canadensis is in the Fabaceae (lentil) family, so it produces brown to black pods that look like flattened pea pods. They are a food source for squirrels and some birds and, roasted, can be eaten by humans. Each flower, as long as it is fertilized, gives rise to one pod.
Seasons
  • Spring before flowers bloom
  • Late spring
  • Winter
Research
Natural range of distribution: 
Habitat: 
Cercis canadensis is in the a genus of shrubs and small trees Cercis, thought to have originated in the Indian Ocean; over time, they spread throughout Eurasia and the Americas. Rather than being in Europe (as Cercis siliquastrum), Cercis canadensis is naturally found in Eastern and Central North America. It can thrive in many other regions, however, such as California. The Eastern Redbud does best with regular water (being in a forest helps), a well-drained soil (especially soil rich in limestone), and full sun (it doesn't want to be too close to another tree). It thrives where there is open space—forest edges, abandoned fields, and forest-meadow ecotopes. You will also find more Eastern Redbuds on south-facing slopes. The Redbud is naturally an understory tree. It doesn't acquire the height to compete with a large oak, for example. Eastern Redbuds are widespread in the territory of the United States, but they will not dominate an ecosystem. In a forest in the South, you might find something like 1% of the trees are Eastern Redbuds.
Origin, history, and uses: 

The flowers of the Eastern Redbud can be eaten boiled or fried. In some parts of Appalachia, the green tips of its branches are used as a seasoning for venison and other meats; for this reason, it is sometimes known as the spicewood tree. The tree’s seeds are also nutritious, with many types of fatty acids and some polyphenol antioxidants.

Other than the culinary use of the Redbud’s pods, especially by indigenous peoples, humans mostly use it for ornamentation, with its striking flowers. Thomas Jefferson and George Washington complimented it in their writing and planted it on their estates. Today, different commercial, ornamental varieties are on the market, some with special characteristics, such as weeping branches. It is often planted with lilies and daffodils, as it is here. This makes for a garden with ground flowers and tree flowers! The only caveat is it will not fix nitrogen in your soil, unlike other plants related to lentils; it lacks the root nodules. It is helpful to know a common lifespan is twenty to thirty years, though it can live much longer if it doesn’t fall prey to disease, especially fungal disease, which it is vulnerable to.

Phenology: 
In late March, April, or May depending on the altitude. This tree was seen starting to bloom April 22, 2026. As the flowers fade, the leaves emerge, and in the summer it grows. In the fall its leaves fall and its pods turn brown. Leaves can take on a variety of colors in fall, though a clear yellow is common. Each year, the Redbud grows in diameter by around a quarter to a half of an inch. During winter, the tree is ready to bloom, though dormant. It may have seed pods remaining from the fall. When they fall on the ground, it can take a few years for the seeds to germinate.
References: 
Cercis canadensis L. (n.d.). Retrieved April 23, 2026, from https://www.srs.fs.usda.gov/pubs/misc/ag_654/volume_2/cercis/canadensis.htm
Eastern Redbud: A Superb Tree for Almost Any Landscape. (n.d.). Retrieved April 20, 2026, from https://extension.psu.edu/eastern-redbud-a-superb-tree-for-almost-any-landscape
Eastern Redbud: An All-American Star. (2022, February 8). Department of Horticulture. https://www.canr.msu.edu/news/eastern-redbud-an-all-american-star

GrowIt BuildIt. (2022, January 22). Eastern redbud tree (Cercis canadensis): Complete guidehttps://growitbuildit.com/eastern-redbud-tree-cercis-canadensis/

PLUMMER, G. L. (1954a). Cercis Canadensis L.; an Ecological Life History [Ph.D., Purdue University]. https://www.proquest.com/docview/302012386/abstract/B3035AFA2F794285PQ/1
Robertson, K. R. (1976). Cercis: The Redbuds. Arnoldia, 36(2), 37–49.

University of Wisconsin–Madison Division of Extension. (n.d.). Eastern redbud (Cercis canadensis)https://hort.extension.wisc.edu/articles/eastern-redbud-cercis-canadensis/

Wikipedia contributors. (n.d.). Cercis canadensis. In Wikipedia, The Free Encyclopediahttps://en.wikipedia.org/wiki/Cercis_canadensis

Media and Arts
AttachmentSize
Audio icon redbud_final_tree.mp32.79 MB

Song lyrics: At school, students stress; they sit through highs and lows. My redbud tree’s standing there, happy as can be. On a south facing hill, it’s always fed well. All across America, your bold blossoms steal our eyes. All in pink, it is a Valentine’s reprise. Standing there, breathing air, all the time feeding the bees and the birds. I Death by fungi gives you no doubt, for you have many sprouts Will I get a D, I don’t know, but this tree seems so chill to me. All across America, your bold blossoms steal our eyes. On this this hill right now, I’m just going to stand and face the sun.

Shrub Canopy Area: 
6.20sq.m.