At the black rock half-way up, Dianthus, Astragalus, Crotalarioid, Rosae sp.
I see no reason why the stipulae of Rosae are not to be considered as belonging to, or dilatations of the petiole.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "rosae" in a variety of sentences. We hope that you will now be able to make sentences using this word.