Haworthia

Taxobox
name = "Haworthia"

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image_width = 200px
image_caption = "Haworthia glauca"
regnum = Plantae
divisio = Magnoliophyta
classis = Liliopsida
ordo = Asparagales
familia = Asphodelaceae
genus = "Haworthia"
genus_authority = Duval
subdivision_ranks = Species
subdivision =Around 70, including: "Haworthia angustifolia" "Haworthia arachnoidea" "Haworthia attenuata" "Haworthia coarctata" "Haworthia cooperi" "Haworthia cymbiformis" "Haworthia emelyae" "Haworthia fasciata" "Haworthia glabrata" "Haworthia glauca" "Haworthia maraisii" "Haworthia mirabilis" "Haworthia pygmaea" "Haworthia reinwardtii" "Haworthia retusa" "Haworthia truncata" "Haworthia turgida" "Haworthia venosa" "Haworthia viscosa"

Haworthia is a genus of flowering plants within the family Asphodelaceae. They are small (typically 20 cm high) solitary or clump-forming and endemic to South Africa. Bayer (1976)Fact|date=March 2007 recognized 68 species, with 41 subspecies, varieties and forms. Some species have firm, tough leaves, usually dark green in color, whereas other are soft and semi-translucent.

Their flowers are small, white and very similar between species. But their leaves show wide variations even within one species. Some species such as "Haworthia attenuata" and "Haworthia cymbiformis", are fairly common housplants.

Closely related plants in the Asphodelaceae, include the genera "Aloe", "Gasteria" and "Kniphofia". Some intergeneric hybrids between "Aloe" or "Gasteria" and "Haworthia" species are known.

The genus "Haworthia" is named after the botanist Adrian Hardy Haworth.

Haworthia species reproduce both through seed and through budding, or pups. Certain varieties may be more successful or rapid in pup production, and these pups are easily removed to yield new plants once a substantial root system has developed on the offshoot. Less reliably, the plants may also be propagated through leaf cuttings, and in some instances, through tissue culture.

External links

* [http://www.haworthia.com/ Haworthia (David Martin)]
* [http://ourworld.compuserve.com/homepages/Rob_Scott/ The UK National Haworthia Collection]
* [http://www.haworthia.info/ Haworthia (Ingo Breuer)]
* [http://www.haworthia-gasteria.com/ Haworthia (Jakub Jilemicky)]