Nyssa

例句：

1. 1. The nyssa tree is a popular ornamental plant in many gardens.
   紫杉树是许多花园中流行的观赏植物。
2. 2. Nyssa is a genus of flowering plants native to South America.
   紫杉属是原产于南美洲的一类开花植物。
3. 3. In ancient times, nyssa was used as a medicinal herb for treating various ailments.
   在古代，紫杉被用作治疗各种疾病的草药。