Inferno Tree

The Inferno Tree split off from the Temperate Bubble Tree. It has evolved to live in the hot savannas. The tree is wider then it is tall, to maximize its sun-grabbing potential. Most of the tree's growth happens in the wet season, when it has plenty of water. When the weather starts to turn dry, many nuts appear, all over its branches. These nuts are the bubbles, but they have lost their ability to float, instead favoring a hard thick shell, which also happens to be highly flammable. As a nut dries out, and the temperature gets hotter, the nut will burst into flames. Inside the nut are many tiny, fireproof seeds. When the nut bursts into flames, these tiny seeds are carried off in the smoke to their new destination. The burst of flames last only a few seconds, but it is enough to leave soot all over the branch on which it was sitting. If it happens right, it is possible for the one bursting nut to set off a chain reaction causing the whole tree to engulf in flames all at once. When the weather turns wet again, the rain will wash away all the soot, and allow the tiny seed (wherever they may have landed) to start growing.