Where is the Largest Collection of Rarest Plants Found?

Over 33% of the 800 plant species on the island of Socotra off the coast of
Yemen are not found anywhere else on Earth.

The largest collection of rarest plants is found on the island of Socotra,
located in the Indian Ocean off the coast of Yemen. Socotra is home to
approximately 800 species of plants, and over 33% of them are thought to be
unique to the island and not found anywhere else in the world. The
island’s collection of rare plants is generally not seen by many tourists
because the island belongs to Yemen, which has very strict regulations
regarding tourists. In 2008, Socotra was named as a Natural World Heritage
Site by United Nations Educational, Scientific and Cultural Organization
(UNESCO), which recognizes natural geographical phenomenon.
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