Recently a friend gave me a cutting of his NOID Aeschynanthus. It's quite succulent for an Aeschynanthus. I really want to say that it's nearly twice as succulent as Aeschynanthus speciosus...which is more succulent than Aeschynanthus evrardii. I also have Aeschynanthus gracilis...which is somewhat succulent...but the growth habit of the NOID cutting is more along the lines of speciosus/evrardii.

Does anybody know which Aeschynanthus might perhaps be the most succulent?

In terms of flowers...my friend said that the flowers aren't particularly showy. Which might suggest that it's not very commonly grown.