THRIXANTHOCEREUS
Autor: Backeberg • ETYMOLOGY ≪Cereus with hairy flowers≫, because the calyx of the flowers has fine hairs. • DESCRIPTION A genus of cereiform plants, mostly solitary, rarely branching, if so, from the base, exceeding no more than 4 m high, having very early long setose hairs at the base, ribs finely tuberculate, bearing a slightly sunken…