Ghostwood

Scattered throughout Atan Irith, ghostwood trees tend to grow in small groves amidst other, more verdant, trees, but larger forests exist around Inye'vexl. Ghostwoods are deciduous trees reminiscent of birches with chalk-white bark and singular, spear-shaped leaves with lobed edges. The leaves are a green so pale as to be almost white, especially from a distance, and the trees' flowers are of a white to match the bark.

While the bark and flowers are popular ingredients in certain tisanes, the leaves are to be avoided at all costs.

Rhyming poems exist in Common, Erithi, and Inyexi and are taught to all children on Atan Irith. The Common translation is below:

Bark as white as birch,
Flower pale as death,
Leaves with hints of green, take away your breath.
Play in its shadows,
Smell all its flowers,
Touch not the leaves, or death comes in hours.

References:

The Fairy Ring

Inyexat: People of the Stars