Maybe a Brasilopuntia of some kind. It's a heck of a groundcover. If you don't get the answer here, and you're on Facebook, there's an Opuntiad group you can post to.

Thank you, cactusmcharris. I believe you nailed it!

Jeff, it is Brasiliopuntia brasiliensis. There is only one species in the genus.

Here is one my peeps have growing in The Philippines.

Christopher

A monotypic genus? Another Leuchtenbergia of the Opuntia Tribe you say? Your pic is wonderfully illustrative of the power of tropical Opuntia in a tropical environment.

Affirmative on all accounts, my friend.

Christopher