世界一大きい植物は何？
If considered singular entities, the largest organisms are clonal colonies which can spread over large areas. Pando, a clonal colony of the quaking aspen tree, is widely considered to be the largest such organism by mass. Even if such colonies are excluded, trees retain their dominance of this listing, with the giant sequoia being the most massive tree. In 2006 a huge clonal colony of "Posidonia oceanica" was discovered south of the island of Ibiza. At across, and estimated at around 100,000 years old, it may be one of the largest and oldest clonal colonies on Earth.
Pando