Known features:

• Pretty to look at
• Will stab you good if you get involved in the least.
• It is in the "true" ms color (ie green)
• Worse if in a forest of these
• Gives people the ability to fly
• Bears fruit resembling apples, but which are tasteless, mealy, and rife with worms and viruses.
• Automatically installs Microsoft shrub and Microsoft weed, to enhance the computing experience.
• Mulches into excellent open source fertilizer
• Built-in hostility factor for other neighboring species of life to try to cope with.
• Hoards resources and generally hard to kill (can survive droughts, etc).
• Bugs (both beneficial and not)
• Automatically assumes root in the ecosystem. (egosystem? ;-)
• Best if you just "leaf" it alone.
• Is snuggly soft.
• Its byte is worse than its bark.
• Goes into "kudzu" mode – engulfs and strangles any other tree.