Duckweed plants hardly larger than an ant float on the surface in uncounted thousands, drifting wherever the water flows. Especially notable is the dwarf duckweed, the smallest flowering plant in the world and one of five species of duckweed found in Taiwan.
比螞蟻大不了多少的浮萍，成千上百的集結隨水流四處游移，其中肉眼難見的「卵萍」，是全世界最小的開花植物，也是台灣五種浮萍中的一種。