walking leaf

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A walking fern.

from The Century Dictionary.

• noun Same as walking-fern.
• noun An orthopterous insect of the family Phasmid æ., belonging to Phyllium or some closely allied genus.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun tropical insect having a flattened leaflike body; common in southern Asia and the East Indies
• noun ferns having lanceolate fronds that root at the tip