What poem does "the peony demon in the vestibule is nameless, and the pool is full of flowers and feelings" come from and what does it mean?

The peony in front of the courtyard is enchanting and gorgeous but lacking in bones, and the lotus in the pool is elegant, clean and boring.

Only peony is the real national color, and it will move the capital as soon as it opens.

The peony demon in the vestibule is nameless, and the pool is clean and heartless-the peony in front of the court is enchanting but boneless, and the lotus in the pool is elegant, clean and heartless.