Agave vilmoriniana (Octopus Agave) - A very unusual looking succulent with narrow green leaves that twist back towards the ground, making it look like a 4 feet tall and wide octopus with outreaching tentacles. Arching deeply furrowed leaves are unarmed, making this Agave a relatively safe plant for walkway areas or container growing. It should be noted the leaf margins, while unarmed to the eye can have small serrations and be fairly sharp.