Nestled inside and chewing on its leaves is the tiny monarch larva, which after one month will move to a bush, a tree, or a nearby weed and begin to form a cocoon.
這是蘭嶼的特有種植物，攀爬在地上、樹上，剛孵化的珠光黃裳鳳蝶幼蟲窩居其中，啃蝕嫩芽。一個月後，幼蟲會就地或另覓樹枝、雜草，開始吐絲成蛹。