The cross on the bottom
On top, white on the side
The edge is on top but the white faces sideways. U' brings it to the right, R' takes it down to the middle, F places it at the front, and R puts back the right edge that R' moved. If the right spot is still empty, U' R' F is enough.
Bottom
Your status (“Learning” adds it to your reviews)
Algorithm
U' R' F R
4 moves. The letters stand for the faces: review the notation.
Set up this case
From a solved cube, yellow on top and green in front, do this scramble: you get exactly this case.
R' F' R U
The cross on the bottom: other cases
Bring each white edge straight down to its spot, white on the bottom, no daisy.