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Wall of Thorns

School conjuration (creation); Level druid 5; Domain blood 5, plant 5

CASTING

Casting Time 1 standard action
Components V, S

EFFECT

Range medium (100 ft. + 10 ft./level)
Effect wall of thorny brush, up to one 10-ft. cube/level (S)
Duration 10 min./level (D)
Saving Throw none; Spell Resistance no

By the way...
The effects created by this spell move with a ship.

Source Skull & Shackles Player's Guide