The Order Arales is a diverse group of flowering monocotyledons that includes includes herbs, climbers, marsh and floating aquatic plants, the majority of which are native to the tropics. A unifying characteristic is that the flowers of plants in this Order Arales are usually arranged on a spadix.
Within the Arales is the large, diverse and mostly non-succulent Aroid Family Araceae.
The only truly succulent Airoid is in the monotypic genus Zamioculcas.
Right: the evil-smelling inflorescence of Amorphophallus titanum, showing a characteristic spadix surrounded by a spathe.
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Families of Succulent Plants 
