one of several types of plant. Some types, with small white, blue, or pink flowers, are common in gardens. 香雪球:几种植物中的一种。某些类型的花朵通常有白色,蓝色或粉红色的小花在花园中。 Word Originmid 16th cent. (used loosely to denote various medicinal herbs): modern Latin, from Latin alysson, from Greek alusson, from a- ‘without’ + lussa ‘rabies’ (referring to early herbalist use).