Haworthia arachnoidea
| Haworthia arachnoidea | |
|---|---|
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| Haworthia arachnoidea in habitat, near Ladismith. | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Xanthorrhoeaceae |
| Subfamily: | Asphodeloideae |
| Genus: | Haworthia |
| Species: | H. arachnoidea |
| Binomial name | |
| Haworthia arachnoidea Haw. | |
Haworthia arachnoidea is the type species of the genus Haworthia, in the family Xanthorrhoeaceae, in the Western Cape Province of South Africa.
Description
The plant has numerous leaves, covered in translucent bristles, in a dense rosette, which dry and contract in the arid summers. It usually occurs in a wide range of habitats and usually in the shelter of protective rocks and shading plants.
It is a widespread and extremely variable species, with no typical form. There are also a range of intermediate forms between this species and Haworthia mucronata. Many of these intermediates are treated as a variety, and given the name Haworthia arachnoidea var. nigricans[1]
Distribution
This most well-known form of this species occurs in the Breede River valley, in the areas of Worcester and Robertson (H. arachnoidea var. arachnoidea). Other varieties of this same species occur northwards into the Namaqualand (var. namaquensis), and eastwards as far as Port Elizabeth (vars. xiphiophylla, aranea and setata).
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