When ginkgo trees begin blooming in Washington, it can mean only one thing: The smell of vomit is not far behind. The female version of the hardy ginkgo tree is best known in cities nationwide for its putrid odor, which develops after the tree's seed shells drop to the ground and create a slippery, stinky mess.

D.C. sprays the trees in the spring to keep the "notoriously unpleasant odor from overtaking city streets," says DDOT spokesman John Lisle.

You can help stem the stink by adding the location of your favorite stinky ginkgo trees. We will be update the map as well as we get information on tree spraying.

Avoid the stink!

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