The tree -- which Norway has erected in Union Station every year since 1996 as a symbol of the country's gratitude to the United States for its help in World War II -- was lit during a ceremony Tuesday.
It is adorned with 700 images of the famous painting, TheLocal.no reported Wednesday.
"In a way, it symbolizes all the angst in preparing for an excellent Christmas," Kare Aas, the Norwegian ambassador to the United States, told the Washington Post. "I, myself, have that feeling. I'm not the only one who wants to scream from time to time."
Aas said the tree's theme celebrates the 150th anniversary of Munch's birth.