plant germplasm的用法和样例：
例句
- Native to the Mediterranean and western Asia, marjoram is cultivated as an annual where winter temperatures kill the plant.
原产于地中海地区和亚洲西部，在北方作为一年生植物栽培。 - African sedge widely cultivated as an ornamental water plant for its terminal umbrellalike cluster of slender grasslike leaves.
一种非洲莎草，叶细长，成顶生的大轮状排列，且常作为一个水生植物栽培。
