This aloe is misidentified. I realize the original photo comes from Wikipedia, but they have the wrong species name attached to it. Looks like maybe A. wickensii or similar?
This is what A. reitzii looks like (see also other pictures in album).
https://www.flickr.com/photos/...
Its flowers are distinctive and different from the ones in the database picture in a few ways: very short pedicels, dense racemes with pendulous, curved flowers that are wider in the middle.
I have moved this image to the genus entry for Aloe. If you have any idea what it may be, please let me know.