Strange Trees are the unofficially named objects in Devil May Cry 4. They rot when they come in contact with the Sephirothic Fruit, opening up new paths for Nero and thus functioning in a similar way to Sealed Doors. The origins of these trees are unknown, although they are probably a result of the demon infestation in the forest.
Appearance and Description
Strange Trees seem to be the influence of demon presence out in the human world. At the first glance the wouldn't represent a tree at all, the apperance tells more of a root, rather than anything higher. But because such plants never grow individually and downwards, but in large masses and upwards instead, they merge into one huge collossal tree. What's more, the formations grow out in the most unordinary ways: through building floors, between platoes and other places where usual plant would be rare to find.
Strange, or - demonic trees have everything that would be cosidered evil from the first sight: Dark, coal tint color; red veins coursing through the bark and absolutely unnatural tendency to twist around. What is also unique about them is that mystical flora cannot be damaged or destroyed with natural means. As it turns out, everything is connected to a specific item called Sephirotic Fruit, which gave birth to all evil.
If, however, the Sephirotic Fruit is taken in possession, and brought to the Strange Trees, plants will simply dry out and crumble into pieces, freeing the way. Knowing, if it really manages or only destroys the roots remains a mystery.
The largest tree of this kind is found by Nero in the Order of the Sword's HQ, inside Agnus's Room. It grew so large that it prevents a bridge within the compound from lowering. After Nero nearly defeats Agnus in battle, Sanctus kidnaps Kyrie. This enrages Nero so completely that he punches the root-covered floor of the room several times, causing the large tree to disintegrate and allowing him access to the other section of the headquarters.
Strange Trees block off several paths throughout the maze-like Mitis Forest, forcing Nero to take a certain route. After Nero obtains the Sephirothic Fruit in Mission 7, Strange Trees blocking paths will disappear when examined.