The largest individual tree in the world is the Giant Sequoia called the "General Sherman,"which has a height of about 275 ft. a girth of 25 ft and a volume of 52,500 cubic feet.

The world's tallest tree is a Coast Redwood in California at 360ft.

The world's oldest trees are Bristlecone pines in the White Mountains of California and Nevada, with confirmed ages up to 4600 years.

Tree rings can provide precise information about environmental events including volcanic eruptions.

Dendrochronology is the science of dating trees from their rings.

Yew leaves may help in the treatment of cancer; a drug called Taxol can be produced from them.

A cottonwood seed is surrounded by ultra-light white fluff hairs that carry it on the air from anywhere between a minute and a couple of days.

A healthy mature Birch tree can produce up to 1 million seeds in a good year.

A commercial size aspen trunk in Canada is made into about a million matchsticks.

Broadleaved trees change color in the autumn because the green chlorophyll in leaves breaks down and is reabsorbed by the tree, prior to leaf shed.

Tree fruits are designed to be dispersed, so many berries are red, as this is a preferred food color of birds.

The world's rarest trees are endemics of remote islands, some known only from single wild specimens, such as the St. Helena Olive.

It takes approximately 2 tons of timber to make 1 ton of paper. The calorific value of 2 tons of timber is the same as 1 tons of coal.