Junglerazer

(Spell Compendium, page 127, DnD 3.5)

Necromancy

Level: ; Druid 3; Sorcerer/Wizard 3
Components: V, S, M
Casting Time: 1 standard action
Range: 120 ft.
Area: 120-ft. line
Duration: Instantaneous
Saving Throw: Reflex half
Spell Resistance: Yes

Invisible destructive energy springs silently forth from you, instantly destroying all natural plant life in the area and leaving a path of ash in its wake.

Fey, vermin, plants and plant creatures, and animals caught in the area take 1d10 points of negative energy damage per caster level (maximum 10d10).

Material Component: A pinch of ash from a burnt plant.