Cyathium is characterized by (1) Single female flower surrounded by many male flowers (2) As involucres of bracts enclosing all the flowers (3)

Cyathium is characterized by

(1) Single female flower surrounded by many male flowers

(2) As involucres of bracts enclosing all the flowers

(3) Fleshy inflorescence axis with a pear shaped cavity inside

(4) Single male flower surrounded by many female flowers