Uneven, as leaves

• With a gnawed edge
• Like an oak leaf
• Saw-toothed
• Notched irregularly
• Like a maple leaf
• Unevenly edged
• Irregular, as a leaf's edge
• Having irregular edges
• Corroded

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
of a leaf, an insect wing, etc., "with indented edges that appear as if gnawed," 1793, from Latin erosus , past participle of erodere "gnaw away" (see erode ).