Anomalous secondary growth in monocots is seen in

Options

A. Dracaena
B. Aloe
C. Yucca
D. All of the above

Answer

### Step-by-Step Solution:

1. **Understanding Monocots and Secondary Growth**:
- Monocots, or monocotyledons, are a group of flowering plants that typically do not exhibit secondary growth. This is primarily because their vascular bundles are closed and lack cambium, which is responsible for secondary growth in dicots.

2. **Identifying Vascular Bundles**:
- In monocots, the vascular bundles are scattered throughout the stem and are composed mainly of primary tissues. This arrangement limits the ability of these plants to increase in thickness through secondary growth.

3. **Exceptions in Monocots**:
- While most monocots do not undergo secondary growth, some exceptions exist. Certain plants in the family Liliaceae (lily family) have adapted to exhibit anomalous secondary growth.

4. **Recognizing the Unique Character of Liliaceae**:
- Within the Liliaceae family, some monocots can show secondary growth. This is an unusual trait for monocots, making it important to identify which specific plants exhibit this characteristic.

5. **Identifying the Correct Plant**:
- Among the plants that show this anomalous secondary growth, Drosemia is noted for its ability to undergo normal secondary growth. This means that despite being a monocot, Drosemia can thicken its stems through secondary growth processes.

6. **Conclusion**:
- Therefore, the correct answer to the question regarding which monocot exhibits anomalous secondary growth is **Drosemia**.