Question

Name some plants that contain adventitious roots.

Answer 1

Hint: These roots are present mainly in monocots. Monocots are those plants that do not have vascular cambium or do not show secondary growth, they do not have very thick stems due to lack of secondary growth.

Complete answer:
The adventitious roots are roots formed by part of the seed other than the radicle. It is identified by the phenomenon of roots forming the cluster. It is commonly found in many monocotyledonous plants, like cereals and grasses.
1. Adventitious roots differ from taproots in origin; taproots arise from the radicle of the seed whereas the adventitious roots arise from anywhere other than the radicle.
2. Root with its only primary root branch is called tap root but the roots which are observed with clusters of small thread-like root branches is adventitious root.
3. Adventitious root also has a primary root but it is short-lived and dies usually a couple of months later.
4. The word adventitious comes from a Latin word meaning extra-ordinary.
5. The adventitious roots can arise from epicotyl, the base of the stem or the nodes, and any other part which is not radicle.
6. The water plants are also called hydrophytic plants; they need little water for absorption, therefore they do not have any type of roots.
7. Examples of hydrophytic plants are Wolffia.
8. Adventitious roots may be sub-ariel, aerial, or underground.

So, the correct answer is, grasses and cereals.

Note:
In the plant Pandanus the roots have multiple root caps.
In the plants Eichhornia, Pistia, and Lemna, roots do not have root caps but they do show the presence of root pockets.