26Windmill Palm

There is a species of palm tree (Windmill Palm) that can survive as far north as Canada. - Source
27. The Giant Redwood Tree is so tall that in order to get water near the top of the tree, it uses "air roots" to collect water out of the fog. - Source
28. Older bigger trees share nutrients with smaller trees, which later repay them back when they have developed. - Source
29. When trees started evolving and growing throughout the world, wood was not biodegradable until a fungus figured out how to rot them 40 million years later. - Source
30. Aluminum Christmas trees dropped in popularity after their negative portrayal in “A Charlie Brown Christmas.”- Source
31Trees

Trees actually sleep at night, relaxing their branches after dawn and perking them up before sunrise. - Source
32. The Rainbow Eucalyptus trees in Hawaii have natural rainbow-colored bark.- Source
33. The wood of tabebuia trees is more dense than water and naturally shares the same fire resistance rating as industrial steel.- Source
34. To stop the theft of trees in public parks near Christmas time, some cities spray would-be Christmas trees with fox urine. It freezes and is odorless outdoors, but would be unbearable and irremovable if taken into someone's home. - Source
35. Trees can tell if deer are trying to eat them. Due to their ability to detect deer saliva, trees defend themselves by producing excess acids that cause their buds to taste bitter so that the deer will lose interest and leave them alone.
36Baobab tree

The Baobab tree is hollow and provides a life for animals and humans in parched lands. - Source
37. Pine trees scatter their needles across the forest floor to make it easier for fires to burn all of the other trees. Pine is fire resistant so it survives.- Source
38. Paulownia is also known as the "princess tree" because it was once customary to plant a Paulownia tree when a baby girl was born, and then to make it into a dresser as a wedding present when she married. - Source
39. After the holidays, the Rockefeller Christmas Tree is milled into lumber and donated to Habitat For Humanity to be used for building homes. - Source
40. Severing the limb of a Bloodwood tree triggers the same type of response you'd see if you severed a human limb. The damage causes the release of a deep crimson sap that looks alarmingly like human blood. Its sole purpose is to coagulate and seal wounds, but has many other medical uses as well.
41Solitary tree

There was a solitary tree in the Sahara Desert, keeping itself alive by a 110-feet deep root system, until a drunk driver managed to ram his truck into it.- Source
42. Moringa tree leaves contain all of the essential amino acids, more iron than spinach, more calcium than milk, more Vitamin A than carrots, and their seeds have been shown to purify water. - Source
43. The original Bramley apple tree planted in 1809, from which all Bramley apple trees are cloned, is still alive, but dying from a fungal infection. - Source
44. One olive tree can produce around four liters of oil every year for hundreds of years. - Source
45. The Sandbox Tree, also known as the Dynamite Tree, is covered in spikes, full of poison, and grows exploding fruits. - Source
46Artificial trees

Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using “leaves” that are 1,000 times more efficient than true leaves that use photosynthesis. - Source
47. There is a tree called the Tree of Life in Bahrain which is approximately 400 years old, living in the desert with no other vegetation in the surrounding area.- Source
48. There exist a mysterious fruit-bearing species of tree named Stern's medlar in Arkansas that was discovered by science in 1990. It is only the second of its kind, with its closest relative being in Europe. It exists only in a 22-acre area. There are only 25 trees left of its kind and no one knows where it came from.- Source
49. The peanut butter tree is a tropical tree that smells like peanut butter and produces fruit that tastes like it as well. - Source
50. The ant tree is also known as a “novice tree” because only someone unfamiliar with the tree would dare touch it and will soon discover that the ants that live inside it are aggressive and venomous.- Source