Multiple choice

Ferns, iris, and bent grass produce horizontal underground stems known as __________.

  1. Hooks

  2. Cladophylls and Phylloclades

  3. Rhizome

  4. Tuber

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ferns, iris, and bent grass produce horizontal underground stems known as rhizomes. Leaves grow at one end and roots at the other. They can be fleshy like those of ferns and German iris and serve as important storage organs for the plant. Rhizomes are often used to propagate plants.