It’s the “feijoa, or pineapple guava”, apparently.

This ubiquitous fruit is the feijoa (pronounced fee-jo-ah). Known in the United States as the pineapple guava, it was first brought to New Zealand from South America via France and California in the early 1900s.

Its tangy taste is hard to describe, even for die-hard fans. But what is easy to pinpoint is that like the kiwi fruit, which originated in China, and the kiwi, a native bird, the feijoa has become for many here a quintessential symbol of New Zealand, or Aotearoa, as the country is known in the Indigenous Maori language.

Interesting story that could have benefited from a non clickbait title, NYT.