Eastern Wahoo

Arbor Walk #47, Treekeeper ID #6770

This small tree is a Missouri and Chicago-region native offering attractive bright red fruit and beautiful color in the fall. The shrub is highly adaptable to a variety of soil conditions, and in the wild grows in many environments from wooded stream banks to open thickets. Though all parts of the plant are today recognized as poisonous if ingested, the bark, leaves and fruit were all historically used for medicinal purposes.

Common NameEastern Wahoo
Latin NameEuonymus atropurpureus
Indigenous Name(s)Miami: mahweeyaahkwi; Quapaw: žíwe ttą́ka hi
Cultivar/Variety
Commercial Name
Global Distribution
Where to find Arbor Walk #47 on WashU campus
Our Eastern Wahoo in space
GPS Coordinates

N/A

Percent Concrete

N/A

Distance to Buildings
YearClose Building #1Close Building #2Close Building #3
2020Somers Family Hall, 27.13 mMcDonnell Hall, 52.66 mGoldfarb Hall, 91.13 m
Distance to Other Species
YearClose Species #1Close Species # 2Close Species # 3
2020Eastern Wahoo, 2.46 mEnglish Oak, 4.92 mEastern Wahoo, 2.52 m
Our Eastern Wahoo through time
Standard Measurements
YearHeight (m)DBH (cm)Caliper (m)Crown Diameter N-S (m)Crown Diameter E-W (m)Average Crown Diameter (m)
20203.77860.017N/A1.231.471.35
20233.255/9.5N/A2.981.982.48
Nests and Pests
YearDescription
2020No obvious indication of nests or pests on this tree
How to identify a Eastern Wahoo
Leaf Identification

The leaves of the Eastern Wahoo are about 5″ long with an oval to elliptical shape, a pointed tip, and fine toothing along the margin. They are a deep green and stay attached all year.

Twig and Bud Identification

The twig generally remains green as it matures, turning slightly gray as it becomes woody. Buds taper to a sharp tip, and have an elongated shaped.

Bark Identification

The Eastern Wahoo has relatively smooth, dark brown bark. Some vertical marking is present, although not forming furrows.

Fruit Identification

The Eastern Wahoo has scarlet red capsule fruit with (usually) 4 distinct three-dimensional lobes. They become prominent in fall.

Flower Identification

The flowers of the Eastern Wahoo are reddish purple, with four petals and four sepals underneath. The flowers hang on long pedicels that droop down below the stem. They are small and inconspicuous, and bloom in late spring.

Relationship of Euonymus atropurpureus to other species in the arboretum
Additional resources on the Eastern Wahoo

Take a look around Arbor Walk Tree #47