更多catkin例句

1. Catkin bearing nut trees, such as the walnut, have a refined structure that makes grafting difficult.
2. Hardiness of catkin also varied greatly and rather consistently from year to year.
3. It was here that the records of yields and catkin hardiness were valuable.
4. Similarly the fruit of the mulberry represents a catkin-like inflorescence.
5. Catkin, bracted flowers situated along a slender and usually drooping stem.