A Mexican cactus, Disocactus flagelliformis, having slender, creeping or trailing, spiny stems bearing crimson flowers, often cultivated as an ornamental.
Origin
Late 19th century; earliest use found in American Naturalist.
Definition of rat-tail cactus in US English:
rat-tail cactus
noun
A Mexican cactus, Disocactus flagelliformis, having slender, creeping or trailing, spiny stems bearing crimson flowers, often cultivated as an ornamental.
Origin
Late 19th century; earliest use found in American Naturalist.