Poi base (4)

I believe the answer is:

taro

'poi base' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for taro that I've seen before include "Root to eat" , "Starchy plant" , "Chinese eddo" , "Starchy food" , "Fortune-telling cards" .)

I've seen this clue in the King Feature Syndicate, The Wall Street Journal, the LA Times and the Penny Press.

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