The __________ in the park that bloom in the spring include rhododendrons, azaleas, and daffodils.
The __________ in the park that bloom in the spring include rhododendrons, azaleas, and daffodils.
Explanation
"Flora" refers to the plants and vegetation in a particular area.
"The flora in the park that bloom in the spring include rhododendrons, azaleas, and daffodils" is the correct usage in this context.