Appearing gnawed

• Like elm leaves
• Uneven, as if gnawed away
• Corroded
• Notched like a maple leaf
• Rough-edged
• Notched, as leaves
• Like a gnawed leaf, e.g
• Having irregular edges
• Like some shorelines

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Erose \E*rose"\, a. [L. erosus, p. p. See Erode .] Irregular or uneven as if eaten or worn away. (Bot.) Jagged or irregularly toothed, as if nibbled out or gnawed. -- E*rose"ly , adv.