heterothallic

例句：

1. 1. The flowers in this garden are heterothallic, meaning they require pollen from different species to fertilize.
   这个花园里的花朵是异花授粉的，意味着它们需要来自不同物种的花粉来受精。
2. 2. Heterothallic plants are particularly interesting because they can produce seeds with different genetic makeups.
   异花授粉植物特别有趣，因为它们可以产生具有不同基因组成的种子。
3. 3. In nature, heterothallic species often coexist, sharing resources and competing for limited space.
   在自然界中，异花授粉物种往往共存，共享资源并竞争有限的空间。