Orchidaceae, Polystachya polychaete
Here’s a close-up of Polystachya polychaete, an orchid species native to Central West Africa. The flowering spike can be much longer. This was at the end of a flowering cycle when I took the photo. I took the photo in Gabon. If you’re interested, here are some previous posts on other members of the Orchidaceae family.
Click to enlarge.