Rose hips are actually the seed pod that develops after the flowers die. They are normally a very bright red or orange color, and extremely high in Vit C. They make an excellent tea or jelly. Here is a photo link to give you an idea:
http://www.mooseyscountrygarde...
I actually saved some seeds from some hips I harvested a year or so ago and I am going to try planting the seeds and see what happens