Costus are easilly distinguished from other commonly cultivated gingers because the leaves spiral around the main stem like a circular stairway. In fact they are called Spiral Gingers. The Costus species are rich and varied in form, flower and growing conditions. There are short mounding forms, spreading forms and upright forms.
Species and varieties:
Costus amazonica variegata
Costus curvibracteatus
Costus guanaiensis
Costus lasius
Costus longibracteolatus
Costus nudicaulis
Costus pulverulentus
Costus scaber
Costus vargasii
Costus varzearum
Costus villosissimus
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