Blades of Grass

Any plant material that you touch are transformed into magical weaponry.  As part of the action to cast this spell, you may pick up or harvest its components if there are any within reach. You can transform each object of your choices to transformation into a dagger, shortsword, scimitar, rapier, longsword, or greatsword. 

A creature takes 4d6 slashing damage on a failed save, or half as much damage on a successful one. Charisma is your spellcasting ability for it.

When the spell ends, all the weaponry turns to dust.