Are stargazer lillies ok to lay directly on a cake??

Many Lilies contain alkaloids and are NOT edible. Day Lilies may act as a diuretic or laxative; eat in moderation

this is what I cut and pasted from a website...

here it is... anything that isn't edible (flower wise) I wouldn't lay on a cake

http://whatscookingamerica.net/EdibleFlowers/EdibleFlowersMain.htm