Samiksha Jaiswal (Editor)

Haworthia venosa

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Kingdom
  
Plantae

Clade
  
Monocots

Family
  
Asphodelaceae

Rank
  
Species

Clade
  
Angiosperms

Order
  
Asparagales

Subfamily
  
Asphodeloideae

Haworthia venosa wwwlliflecomphotosHaworthiavenosasubsrecur

Similar
  
Haworthia viscosa, Haworthia limifolia, Haworthia reinwardtii, Haworthia retusa, Haworthia cymbiformis

Haworthia venosa is a species of flowering plant in the genus Haworthia belonging to the family Asphodelaceae, native to Namibia and South Africa.

Contents

Haworthia venosa Haworthia venosa var tessellata

Naming and taxonomy

Haworthia venosa Plants amp Flowers Haworthia venosa subsp tessellata

The genus name Haworthia honors the British botanist Adrian Hardy Haworth (1767–1833), while the species name venosa means "veined”.

Haworthia venosa Haworthia Haworthia venosa subsp tessellata

Within the genus Haworthia, the species forms part of the subgenus Hexangulares. More specifically, it falls within section Venosae (together with its close relatives, Haworthia limifolia, Haworthia koelmaniorum and Haworthia woolleyi).

Haworthia venosa Haworthia venosa ssp tessellata Aloe tessellata Aloe parva

Recent phylogenetic studies have demonstrated that subgenus Hexangulares is actually relatively unrelated to other Haworthias (being more closely related to Gasterias. It will therefore comprise a new, separate genus, Haworthiopsis, and this species will accordingly become "Haworthiopsis venosa".

Subspecies

Haworthia venosa Haworthia venosa ssp tessellata Aloe tessellata Aloe parva

Depending on the authority, these are either considered subspecies of venosa, or as independent (but closely related) species in their own right:

Haworthia venosa Haworthia venosa var tessellata

  • H. venosa subsp. granulata (Marloth) M.B.Bayer. A rare form from the south-west of its range.
  • H. venosa subsp. tessellata (Haw.) M.B.Bayer. The most common form.
  • H. venosa subsp. venosa. The rare type form, from an isolated population to the south.
  • H. venosa subsp. woolleyi (Poelln.). A slender, gracile form from the far south-east.

    • H. venosa subsp. tessellata is the form most popular in cultivation, due to its attractive, splayed, compact leaves. It has also gained the Royal Horticultural Society's Award of Garden Merit.

    Description

    It is a mat-forming succulent evergreen perennial reaching 8–60 cm (3–24 in) in height. Stemless rosettes of 12-15 fleshy, triangular, lanceolate, dark green leaves show a few pale green lines along the upper surfaces and small teeth along the margins.

    In spring (November to December) it bears 15 cm (6 in) long stems of green-white, tubular flowers in racemes.

    Distribution

    This species occurs over a large area, from the inland Karoo and Namibia to as far south as the norther part of the Breede River valley. Here it occurs on rocky slopes.

    Cultivation

    In cultivation it requires a minimum temperature of 10 °C (50 °F), so is grown under glass in temperate locations.

    References

    Haworthia venosa Wikipedia
    (Text) CC BY-SA