We always called these "money trees". I don't know the correct name.
I was going to enter this in a dpchallenge contest...
challenge description: take a photo of a black and white subject but in color
with no post processing adjustments. After working on this for way too long,
which included spray painting the vase, decided I didn't care for it.
Lighting was tricky and I had to adjust the color(in camera)
between 2900 and 3300 to obtain the correct color tones for the challenge.
I needed to work on color balance so all was not lost...another learning experience.