The Korean Evodia is another tree with a checkered history in North America. The Latin name for this tree included on the City Park Tree Guide is given as Evodia danielli but it appears Tetradium danielli is also used. Other names include Bee tree, Bee-bee tree or bebe tree. Other sources include the name Honey tree and One Hundred Thousand Flower tree. The current USDA map shows it naturalized in Pennsylvania and Ohio, yet many other states are reporting it as having escaped.
Although Pennsylvania has this species on its watch list for invasive potential, at this point it is not known how it might damage the environment. A four-acre patch of escaped trees has been reported in Maryland. A short article published in 2017 gives more information about the nature of this tree and its invasive nature, stating that hundreds of saplings grow under a female tree and it has been seen outcompeting other invasive species such as the tree of heaven and Japanese stilt grass.
First brought to the United States in the early nineteen hundreds, this specimen is native to the Koreas, northwest China and other parts of Asia. Why is it given its various monikers?
Although the many small blooms, in clusters that resemble poorly formed cauliflower heads, are rather high up and hard to see, bees swarm these late bloomers. It is the second week in September here in Colorado and the flowers are still blooming. Purportedly female flowers will turn to stunning red seed pods.
This propensity for late blooming makes the tree popular with both bees and possibly beekeepers. Although many sites mention this as a nectar source, the references I found date to the 1970s with few current citations. One website suggests a substance made from the seeds is used as both a cooking and hair oil!
In the 1990s the US Forest Service lamented this tree was not used more often for ornamental purposes and suggested it would be a good street tree. Similar to the Amur cork tree, parts of Korean evodia have been used in Chinese medicine for 2000 years. It has been used to treat arthritis, headaches, gastric upset, and other ailments. Both WebMD and RxList suggest there is not enough evidence to show if any parts of the plant are effective.WebMD includes a number of drugs with which evodia may interact and cautions pregnant and breastfeeding women from using it. Surgical patients should also use caution as it might interfere with blood clotting.
C185 Korean Evodia (Evodia danielii) is either no longer tagged or the tag is nearly impossible to find when the tree is blooming. At the right time of year, though, it is fairly easy to identify by the many bees buzzing around its flowers and its somewhat unusual shape. If you found the Amur Cork, walk slightly south and west from there. Although not perfectly aligned with Olive Street, you can also start from where Olive Street tees into Jackson and walk west and slightly south across the park to find it. It is near a large evergreen tree.
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