在山东省栖霞市的众多古槐当中,最具奇趣的当数“院门槐”。“院门槐”位于栖霞市西城镇北乔家村一处民居之后,树龄600余年,树高仅7米,胸围却达400厘米,冠幅东西长15米,南北长9米。主干斜西偏南,已腐朽中空,惟剩一副躯壳。古槐虽说已老态龙钟,却留恋尘世,倔强生存,老而不衰,焕发生机。据村老们讲,自打他们记事起,这棵“院门槐”的主干和四大侧枝就已中空贯通,顽童们时常在此嬉戏, In Qixia City, Shandong Province, many of the ancient Huai, the most interesting when the number of “courtyard Huai.” “Courtyard door Huai ” is located in Qixia City, a town of North Qiaojia Village after a tree, more than 600 years old, tree height of only 7 meters, but the chest was up to 400 cm, 15 meters long east-west crown, 9 meters long from north to south. Main west oblique south, has been decadent hollow, leaving only a shell. Although ancient Huai has been a decisive, but reluctantly the earth, stubborn survive, old but not bad, full of vitality. According to the village elders, since they started their memoirs, the backbone of the tree and the four side branches of the courtyard have been hollow, and the urchins often play here.