4: Hygrophila pogonocalyx Hygrophila pogonocalyx, an endemic plant of Taiwan with beautiful purple blossoms, is another plant threatened with extinction in the wild.
特有種復育之 4 ──「大安水蓑衣」扦插繁殖另一種也面臨在野外棲地消失危機的，是有著美麗紫色花朵的台灣特有種「大安水蓑衣」。