Question: Diplademia, Mandevilla, and Podrenavilla, or Podrenavina. Are these flowers, and if so, are they perennials?
Answer: Dipladenia is the botanical name for Mandevilla, a perennial vine with saucer-shaped flowers. Podranea ricasoliana is the 'Pink Trumpet Vine', a perennial evergreen twining vine with trumpet-shaped pink flowers.
Q&A Library Searching Tips
When singular and plural spellings differ, as in peony and peonies, try both.