The Collaborative International Dictionary
Bottony
Bottony \Bot"ton*y\, Botton'e \Bot"to*n['e]\, a. [F. boutonn['e], fr. boutonner to bud, button.] (Her.) Having a bud or button, or a kind of trefoil, at the end; furnished with knobs or buttons.
Cross bottony (Her.), a cross having each arm terminating in three rounded lobes, forming a sort of trefoil.
Wiktionary
bottony
a. (context heraldry English) Having a bud-like projection or a kind of trefoil at the end.