Death's Head Tree (CR 9)

Huge Plant
Alignment: Always chaotic evil
Initiative: +1 (Dex)

AC: 9 (-2 size, +1 Dex), touch 9, flat-footed 8
Hit Dice: 10d8+50 (95 hp); DR: 5/-
Fort +12, Ref +4, Will +4
Speed: 5 ft.
Space: 10 ft./15 ft.
Base Attack +7; Grapple +11
Attack: 2 slams +14 melee; 4 seed pods +6 ranged touch
Full Attack: 2 slams +14 melee; 4 seed pods +6 ranged touch
Damage: Slam 2d6+9; seed pod (see text)
Special Attacks/Actions: Seed pods
Abilities: Str 28, Dex 12, Con 20, Int 1, Wis 2, Cha 1
Special Qualities: fire immunity, SR 19
Feats: -
Skills: -
Advancement: 10-16 HD (Huge), 16-30 HD (Gargantuan)
Climate/Terrain: Temperate land
Organization: Solitary, pair, or grove (3-6)
Treasure: None

Source: Dragon #292

From a distance, a death's head tree resembles a gnarled, shaggy oak with drooping leaves. The most unusual feature of a death's head tree is its seed pod, which resembles a grinning skull.

Death's head trees are most common in places where large amounts of blood have been spilled, such as battlefields, sacrificial sites, and places where massacres have happened. The trees grow to maturity slowly, reaching a height of 15 or 20 feet in approximately 55 years. It is at this point that they begin producing their unusual fruit, growing a new crop every other year. Judging from the antiquity of certain locations where death's head trees are found, these trees are thought to live for thousands of years. As there is no recorded case of anyone cutting down a death's head tree to count its rings and determine its age, this has yet to be confirmed.

A death's head tree requires humanoid blood in order to germinate its seeds. This blood serves no other purpose -- it does not help a death's head tree grow, for instance. Blood from creatures other than humanoids has no effect on the death's head tree.