Nasturtium leaves are tendrils?

At the risk of outing myself as the last person in the world to know about this, I noticed for the first time ever that the leaves on my nasturtiums (nasturtia?) are acting as tendrils in order to climb up the fence around my walipini.

I'd only ever allowed them to clamber around in the garden before, this was the first time I'd grown one next to a wire fence. It means I have another addition to my climbing layer!

That is an interesting picture!

Matt's wild cherry tomato used its leaves as tendrils; they would sort of hook around other things. I've never seen that behavior in other tomatoes.