What is the lullaby Katniss sings to rue?

This is the lullaby from Katniss to Rue, when Rue dies.

Deep in the meadow, under the willow

A bed of grass, a soft green pillow

Lay down your head, and close your sleepy eyes

And when again they open, the sun will rise

Here it's safe, and here it's warm

Here the daisies guard you from every harm

Here your dreams are sweet--

--and tomorrow brings them true

Here is the place where I love you.

Deep in the meadow, hidden far away

A cloak of leaves, a moonbeam ray

Forget your woes and let your troubles lay

And when again it's morning, they'll wash away

Here it's safe, and here it's warm

Here the daisies guard you from every harm

Here your dreams are sweet--

-- and tomorrow brings them true

Here is the place where I love you.

Here is the place where I love you.