April Color Appears at the Washington Park Arboretum (Part II)
“Now it will Spring forth!”
1) Acer macrophyllum (Bigleaf maple)
- Taken for granted around here, this time of year our Bigleaf maple is most eye-catching in flower.
- It’s the subtle texture of its expanding leaf that drew my attention.
- Located throughout our native matrix as the dominant deciduous forest tree.
2) Aesculus wangii
- A horse chestnut classified as vulnerable in its native habitat of Vietnam.
- Notice the flattened bract-like stipule of the newly-expanding leaves.
- Our young, marginally-hardy specimen is located in Loderi Valley.

3) Kalopanax septemlobus (Prickly castor-oil tree)
- Deciduous tree from northeast Asia known for its “tropical” appearance in full-leaf.
- I was impressed by the size of the bud bracts and pure white indumetum of the expanding leaves.
- This specimen is located along the eastern side of Arboretum Creek, south of Boyer Ave. East
4) Picea meyeri (Meyer’s spruce)
- Spruce tree native to China, similar in appearance to Colorado Blue spruce.
- Quite striking, springing forth new needles in combination with red male and female cones.
- Located in the Pinetum, just west of path and south of Stone Bridge.

5) Populus sp
- The detail and color contrast in the expanding leaf is awesome!
- This poplar is unidentified in our collections, but worthy of attention.
- Located in the Poplar Collection, south Azalea Way.
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