At first blush, you'd call it a bonsai, and it might be, but I suspect it is not a bonsai in the usual sense where some kindly old man has loved it for decades.
More likely, this one was a shrubbery that was tortuously cut back, roots trimmed to to fit in the decorative pot, and allowed to sprout a very little.
It appears to like low lighting, but I question how long it'll be before yielding to the non-lighting in this hallway.
One tiny leaf has already browner and withered.
-- Posted from a mobile device