Sessile flowers lack which structure in the flower?

Options

A. Thalamus
B. Anther
C. Calyx
D. Pedicel

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which structure is absent in sessile flowers. We need to identify the specific part of the flower that is missing.

2. **Defining Sessile Flowers**: Sessile flowers are flowers that do not have a stalk. This means they are directly attached to the plant without a stem or pedicel.

3. **Identifying Flower Structures**: The common structures of a flower include:
- Thalamus (the thickened part of the stem where the flower parts are attached)
- Anther (part of the stamen that produces pollen)
- Calyx (the outermost part of the flower, consisting of sepals)
- Pedicel (the stalk that supports the flower)

4. **Analyzing the Structures**:
- The thalamus, anther, and calyx are all present in sessile flowers.
- The pedicel, however, is the structure that is specifically absent in sessile flowers.

5. **Conclusion**: Therefore, the structure that sessile flowers lack is the **pedicel**.

**Final Answer**: The correct answer is **D. Pedicel**.

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