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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.
The genus Haworthia was long considered problematic, and suspected of being polyphyletic. It was accordingly divided into three different subgenera: Haworthia (the soft, green, leafy, and often retuse species); Hexangulares (the harder, often tubercled species); Robustipedunculares (the four largest, most robust species).
It was formerly classed in the genus Haworthia, with the other large species (T. pumila, T. minima and T. marginata) in the "Robustipedunculares" subgenus. Following recent phylogenetic studies, it has been shown that these four species in fact constitute a distinct out-group, separate from other Haworthias.
Haworthia pubescens is a critically endangered perennial succulent belonging to the family Asphodelaceae. It is endemic to the fynbos region of the Western Cape and is found in Worcester . The plant has an occurrence area of less than 10 km 2 and there is one subpopulation that is threatened by succulent poaching, infrastructure development for ...
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").
The latter is a later homonym of Haworthia minor, and in 2018 the correct combination, Tulista minor, was published. [1] [4] The epithet "minor" means "small" as it is not as large as its closest relatives, such as Tulista pumila. In some old records it is also occasionally classed as Haworthia margaritifera.
Haworthia herbacea is a species of succulent plant in the genus Haworthia native to the Cape Province of South Africa. [1] Closely related to Haworthia reticulata, [2] it has greenish yellow leaves with small spines. As it matures the leaves get darker green and the white spots raise.
This is a "retuse" species of Haworthia and is easily confused with its relatives (e.g. Haworthia pygmaea, Haworthia retusa, Haworthia springbokvlakensis, Haworthia mirabilis, Haworthia emelyae and Haworthia magnifica). A western form, inhabiting shale rocks near Oudtshoorn, is sometimes considered a separate species, Haworthia truteriorum. It ...