The question asks to identify an example of a polycarpic plant from the given options. A polycarpic plant is a plant that can flower and produce fruit multiple times during its life. This is in contrast to a monocarpic plant, which flowers only once and then dies.

Understanding Polycarpic Plants

Polycarpic plants typically have a longer lifespan, often being perennial. They undergo a cycle of vegetative growth, flowering, fruiting, and then returning to vegetative growth or a dormant phase before reproducing again. This repeated reproductive capability defines them as polycarpic.

Analyzing the Options for a Polycarpic Plant

Let's examine each option:

• Pea (Pisum sativum): Peas are generally grown as annuals. They complete their life cycle within a single growing season – germinating, growing, flowering, producing pods (fruit), and dying. Therefore, peas are monocarpic.
• Mango (Mangifera indica): Mango trees are classic examples of perennial plants. They grow for many years, establishing a significant size before they start flowering and producing fruits. Importantly, mango trees flower and bear fruit year after year (seasonally) throughout their long lifespan. This repeated reproduction makes the mango tree a polycarpic plant.
• Bamboo: Bamboo exhibits diverse life cycles. While many species flower repeatedly over many years, some undergo synchronized flowering events after very long intervals (e.g., decades) and then die, behaving somewhat like monocarpics on a grand scale. However, in the general sense of reproducing multiple times between major flowering events, it can be considered polycarpic. Still, mango is a more straightforward and common example.
• Pigeon Pea (Cajanus cajan): Pigeon pea is often cultivated as an annual or biennial crop, although it is botanically a perennial shrub. It can produce flowers and pods multiple times within its growing period, but its lifespan in cultivation is often shorter than that of a typical perennial tree like the mango.

Conclusion: Identifying the Correct Polycarpic Plant Example

Based on the definitions and analysis:

• Pea is monocarpic (annual).
• Mango is a clear example of a polycarpic plant (perennial, reproduces multiple times).
• Bamboo can be complex, but generally reproduces multiple times between potential mass flowering/death events.
• Pigeon Pea can be polycarpic but is often treated as an annual/biennial crop.

The mango tree is the most definitive and commonly cited example of a polycarpic plant among the choices provided, as it reliably flowers and fruits repeatedly over many years.