Inaccurate?

Raise Ice Forest

(Frostburn)

Conjuration (Creation) [Cold]
Level: Druid 7,
Components: V, S, DF, Frostfell
Casting Time: 1 round
Range: Long (400 ft. + 40 ft./level)
Area: 20-ft. square of snow/level
Duration: Permanent
Saving Throw: None
Spell Resistance: No

Immediately after casting this spell, ice trees erupt from frostfell regions within the spell's area.
The ice trees resemble any type of tree designated by the caster (deciduous, evergreen, oak, or others).
Trees have 5-footdiameter trunks and rise to a height of 15 feet.
Three trees appear in each 20-foot-square frostfell region in the area.
Ice Tree: 5 feet thick; hardness 8; hp 80; break DC 45; Climb DC 20.