Weir

Weir trees, also known as weirwoods, were rare trees in Faerûn.

Description
Weir trees resembled oaks and could grow huge in their later years. The most remarkable feature of the weir tree was its leaves: they were silvery brown on the top and velvety black on the bottom.

Any weirwood item brought into a magically-lit area would continue to glow for some time after leaving that area.

Usage
The wood was not naturally flammable, making it excellent for construction purposes. (Living trees were more fire resistant than harvested wood, however. ) It was also often used for making musical instruments, especially lutes, harps, birdpipes, and longhorns, because of its lovely sound.

Alustriel Silverhand created no more than 12 staves out of weirwood that were known as lesser staves of Silverymoon. Weirwood could be used to craft a thyrsus of the druid.

Locations
Weir trees were found mainly far into large, old forests. Most weir trees were protected by protectors of the forest, such as dryads, treants, rangers, or druids.

Weir trees were found in the High Forest, where the gold dragon Aerosclughpalar used weir trees to disguise his true treasure. Weir trees were also found in Ardeep Forest.

Appearances

 * Novels:
 * Forsaken House
 * Sandstorm