This is a traditional origami tulip.The model goes well with one side colored paper too as the folds donot expose the other side.
Its starts with a waterbomb base with hardly 5 to six steps but you need to watch out while inflating the flower and opening the petals.
My tulip got torn while opening the flower.
Origami island It has diagram for tulip and the stem
origami-fun Diagram and video
Origami-Instructions Photo instructions