The plants are not very large, about a foot high, with an erect and densely foliated stem. Most animals kept in captivity do so, without us realising it. This may be the clue to recognising gender in several bird species that we are incapable of diverting into males and females without chromosome testing or looking for testes or ovaria during an operation. Anoles for instance often have large patches on their dewlap that does reflect UV, which gives them a contrast against an UV adsorbing background. Femoral gland-products adsorb UV which makes them conspicious against an UV reflecting background.
Many lizards show a lot more activity when there is some amount of UV in the spectrum.
One should keep that in mind as well when choosing the right lights for a vivarium.