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Haworthia is a large genus of small succulent plants endemic to Southern Africa (Mozambique, Namibia, Lesotho, Eswatini and South Africa). [1]Like aloes and gasteria they are members of the subfamily Asphodeloideae and they generally resemble miniature aloes, except in their flowers, which are distinctive in appearance.
Linnaeus's Aloe species included two now placed in Haworthiopsis. The genus Haworthia was established by Henri Auguste Duval in 1809 for former Aloe species with smaller whitish two-lipped (bilabiate) flowers. Many additional taxa were later added, at both species and infraspecies ranks. This has been described as "causing a great deal of ...
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Haworthiopsis attenuata, formerly Haworthia attenuata, commonly known as zebra haworthia, is a small species of succulent plant from the Eastern Cape Province, South Africa. As an ornamental , it is one of the most commonly cultivated of the Haworthiopsis species.
This species is one of the "retuse" species of Haworthia, meaning that it usually grows sunken beneath the ground with its flattened leaves only showing on the surface.Its rosette of succulent leaves are turned back ("retuse") so as to provide a flat and level face, on the surface of the ground.
In this form, it is similar to other retuse haworthias (e.g. Haworthia retusa, Haworthia bayeri, Haworthia springbokvlakensis, Haworthia pygmaea, Haworthia mirabilis and Haworthia magnifica). A distinctive feature is the convex shape of the leaf faces. The faces appear to bulge upwards, with the leaf tips bent back downwards.
As one of the soft green group of Haworthias it is frequently confused with its relatives (e.g. Haworthia cooperi which shares a similar distribution range, as well as Haworthia mucronata and Haworthia marumiana to the west). A distinctive feature is the soft, "boat-shaped" leaves ("cymbiformis" actually means "boat-shaped").
Intermediate forms exist in the transition between this species and Haworthia decipiens to the east with and with Haworthia mucronata to the south-east. Many of these intermediates are treated as a variety, and given the name Haworthia arachnoidea var. nigricans. To the north, it joins its relative, Haworthia nortieri. [3]