It’s the cactus from yesterday’s video in full bloom, up close.

Ferocactus hamatacanthus

Update: In comments below, Aiyana asked if I use black backdrops, which I do. However, for this photo, there was no backdrop since I cropped it pretty severely. However, the cactus underneath the blooms was in deep shadow. If you look closely, you can sort of see it. Here’s a closeup of the lower right corner where I’ve used photoshop to lighten the shadow area so you can see the cactus beneath: