A poisonous North American plant (Lobelia inflata) having light blue to white flowers and rounded seedpods enclosed by an inflated, persistent calyx.

• 路单利草：一种产于北美的有毒植物（路单利草半边莲属），开有淡蓝色或白色花朵，以及被充气的坚硬的花萼包围着的圆形心皮