What is the classification of a cactus?

Genus Acanthocereus (Engelm. ex A. Berger) Britton & Rose – triangle cactus P. Genus Ancistrocactus (K. Schum.) Britton & Rose P. Genus Ariocarpus Scheidw. – livingrock P. Genus Astrophytum Lem. – astrophytum P. Genus Bergerocactus Britton & Rose – snakecactus P. Genus Borzicactus Riccob. – borzicactus P. read more

The classification of the Cactaceae thus remains subject to change, from the genus level upwards. In 2016, David Hunt wrote that"the advent of molecular systematic studies in the past two decades will hopefully have a stabilizing effect on classification in due course, but has so far had the opposite effect". read more

There is no cactus species that does that. A vine is a plant that uses the support of a stable structure such as another bigger plant to climb. Some cacti, such as the “Queen of the Night” (Selenicereus grandiflorus) do that, too. But that would be a very spiny vine. read more