Ravelry: Easy Irish Rose pattern by Marta Chrzanowska
I’ve seen such roses (but in smaller sizes) used in Irish crochet. The idea is not complicated, and I was able to come up with my own pattern. For the roses shown, I used cotton yarn (can’t tell the size and brand as it’s been in my stash forever).
Irish Crochet Lace Rose Rose Rose Needlepoint www.
Irish Crochet baby bonnet 100 yr old pattern by Wendy Harbaugh