I've searched in the forums, but can't find just what I'm looking for...what kind of flowers can I pipe with buttercream directly on a cake? I can do roses on a nail and transfer just fine, but I want some other flowers in buttercream as well. I can make lots of flowers in RI, but I haven't done so many in buttercream.

Apple blossoms; mums (may be easier to do on nail like rose); daisies; starflower; tulip; lilac; acorn; poinsettia.
I'm sure there are more but right now that's about all I can think of.

rosebuds (not full roses ... rose BUDS). they practically form themselves.

Here you go
Roses:

The only flower that I've tried that hasn't worked out was the tulip but I'm determined to nail that one this coming spring

Thank you all so much! In the past I've checked out one of the Wilton Encyclopedias from the library and there were so many flowers it. I meant to copy the pages that I liked, but didn't get around to it. If only I could fork out the cash to get them...out of print!
I guess the best way to learn is to just try some out! Thanks for the suggestions!

The Wilton Encyclopedias are good but very pricey. You can find them on EBAY from time to time.