...a beautiful article, JJ. But this time, I can identify with one of your plants. I had an aunt who lived in Hawaii, and she sent to me the dried 'wood-rose'. She would send them in our Christmas package, almost as packing material. I saved every one of them, and they became decorations on wreaths and in table arrangements. I have never seen it living and growing, but I did enjoy those wood roses. I still have a few of them, too. My aunt is no longer living, so I guess I have the last of them. They do last for a long long time.
I have a "wood rose" growing at my place here in South Central Texas. It is somewhat contained because of where it is growing, but I believe it would be invasive if allowed "out". The flowers are a bit different from the ones in this article and the flowers are white. But it is definitely a "wood rose".
I also have Podrangea, which survived extreme drought all summer here. It is now happily blooming and spreading wide with our recent rains. I love it, as do the hummingbirds and bumblebees.
I am quite interesting in your wood rose if it blooms white! Now it may simply be another species as Operculina or Merremia dissecta, ddo you have pictures of the flowers and fruits? Most Convolvulaceae are potential invaders...
Hummingbirds! We miss those little jewels here!