Riverworld I: Resurrection Day
In addition to stands of oak, yew, pine, and various types of bamboo, the Valley features a tree unknown to Earth. Dubbed the Irontree, it is a massive plant that can reach up to 1000 feet in height. Its leaves are similarly outsized, each red-veined specimen no smaller than an elephant’s ear. The tree gets its name from its incredible toughness. The wood is phenomenally strong and fire resistant. Their root systems are every bit as massive as the trees they support and decent shelter can be found among their tangles.
Irontrees are generally covered in lattices of entwined, flowering vines.