Claim: One example of a staple food is a starch extracted from the spongy centre, or pith, of various tropical palm stems, especially that of Metroxylon sagu.
Evidence: Other staple foods include pulses -LRB- dried legumes -RRB- , sago -LRB- derived from the pith of the sago palm tree -RRB- , and fruits -LRB- such as breadfruit and plantains -RRB-.
Sago -LSB- ` seIgoU -RSB- is a starch extracted from the spongy centre , or pith , of various tropical palm stems , especially that of Metroxylon sagu.