What is the name of the largest seed in the plant kingdom?

What is the name of the largest seed in the plant kingdom? The largest seed in the plant kingdom is the coco de mer, produced by the Seychelles palm Lodoicea maldivica.

The coco de mer is a huge, distinctive seed from a palm endemic to the Seychelles islands of Praslin and Curieuse. Its parent plant is the only species in the monotypic genus Lodoicea. The seed’s famously suggestive shape inspired legends that it came from an underwater tree, which explains the French name “coco de mer,” or “coconut of the sea.”

A mature fruit can measure roughly 40–50 centimetres across and weigh about 25–45 kilograms, although the seed itself is smaller than the entire fruit. The fruit takes six to seven years to mature, and the seed may require another two years to germinate. This unusually long development contributes to the palm’s rarity and conservation concerns.

A coconut is also a large palm seed, but it is not the largest. Jackfruit seeds and avocado pits are much smaller, while jackfruit pods contain many separate seeds rather than one giant seed.