Haworthia cooperi is a low growing densely clustered succulent which rosettes are usually withdrawn in the soil. Its short stem is located several centimetres underground, and produces many cylindrical leaves that are just long enough to reach the soil surface, the transparent tips allowing light into the factory below. In transverse section the leaf is so transparent you can read through it. It is excellent for transmitting light to parts of the leaf that are underground. It was introduced into cultivation by Cooper in 1860.

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