''Haworthia'' is a large genus of small
succulent plant
In botany, succulent plants, also known as succulents, are plants with parts that are thickened, fleshy, and engorged, usually to retain water in arid climates or soil conditions. The word ''succulent'' comes from the Latin word ''sucus'', meani ...
s endemic to
Southern Africa
Southern Africa is the southernmost subregion of the African continent, south of the Congo and Tanzania. The physical location is the large part of Africa to the south of the extensive Congo River basin. Southern Africa is home to a number of ...
(
Mozambique
Mozambique (), officially the Republic of Mozambique ( pt, Moçambique or , ; ny, Mozambiki; sw, Msumbiji; ts, Muzambhiki), is a country located in southeastern Africa bordered by the Indian Ocean to the east, Tanzania to the north, Malawi ...
,
Namibia
Namibia (, ), officially the Republic of Namibia, is a country in Southern Africa. Its western border is the Atlantic Ocean. It shares land borders with Zambia and Angola to the north, Botswana to the east and South Africa to the south and ea ...
,
Lesotho
Lesotho ( ), officially the Kingdom of Lesotho, is a country landlocked country, landlocked as an Enclave and exclave, enclave in South Africa. It is situated in the Maloti Mountains and contains the Thabana Ntlenyana, highest mountains in Sou ...
,
Eswatini
Eswatini ( ; ss, eSwatini ), officially the Kingdom of Eswatini and formerly named Swaziland ( ; officially renamed in 2018), is a landlocked country in Southern Africa. It is bordered by Mozambique to its northeast and South Africa to its no ...
and
South Africa
South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countri ...
).
[Kew World Checklist of Selected Plant Families]
/ref>
Like the aloe
''Aloe'' (; also written ''Aloë'') is a genus containing over 650 species of flowering succulent plants.WFO (2022): Aloe L. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-4000001341. Accessed on: 06 Nov 2022 The most wid ...
s, they are members of the subfamily
In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end subfamily botanical names with "-oideae", and zoologi ...
Asphodeloideae
Asphodeloideae is a subfamily of the monocot family Asphodelaceae in the order Asparagales. It has previously been treated as a separate family, Asphodelaceae ''sensu stricto''. The family Asphodelaceae has now been proposed to be a nomen conserv ...
and they generally resemble miniature aloes, except in their flowers, which are distinctive in appearance. They are popular garden and container plants.
Description and characteristics
''Haworthias'' are small succulent plant
In botany, succulent plants, also known as succulents, are plants with parts that are thickened, fleshy, and engorged, usually to retain water in arid climates or soil conditions. The word ''succulent'' comes from the Latin word ''sucus'', meani ...
s, forming rosettes of leaves from to exceptionally in diameter, depending on the species. These rosettes are usually stemless but in some species stems reach up to .
The inflorescences of some species may exceed in height.
The plants can grow solitary or can be clump-forming. Many species have firm, tough, fleshy leaves, usually dark green in colour, whereas others are softer and contain leaf window
Leaf window, also known as epidermal window, and fenestration. is a specialized leaf structure consisting of a translucent area through which light can enter the interior surfaces of the leaf where photosynthesis can occur. The translucent structu ...
s with translucent panels through which sunlight can reach internal photosynthetic tissues. Their flowers are small, and generally white. Though they are very similar between species, flowers from the species in section Hexangulares generally have green striations and those from other species often have brown lines in the flowers. However, their leaves show wide variations even within one species.
Additionally, when the plants are stressed (e.g. deprived of water), their colours can change to reds and purples. Depriving them of nitrogen generally results in paler leaves.
Distribution
Most species are endemic
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...
to South Africa
South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countri ...
, with the greatest species diversity occurring in the south-western Cape. Some species do however extend into neighbouring territories, in Eswatini
Eswatini ( ; ss, eSwatini ), officially the Kingdom of Eswatini and formerly named Swaziland ( ; officially renamed in 2018), is a landlocked country in Southern Africa. It is bordered by Mozambique to its northeast and South Africa to its no ...
(formerly Swaziland), southern Namibia
Namibia (, ), officially the Republic of Namibia, is a country in Southern Africa. Its western border is the Atlantic Ocean. It shares land borders with Zambia and Angola to the north, Botswana to the east and South Africa to the south and ea ...
and southern Mozambique
Mozambique (), officially the Republic of Mozambique ( pt, Moçambique or , ; ny, Mozambiki; sw, Msumbiji; ts, Muzambhiki), is a country located in southeastern Africa bordered by the Indian Ocean to the east, Tanzania to the north, Malawi ...
(Maputaland
Maputaland is a natural region of Southern Africa. It is located in the northern part of the province of KwaZulu-Natal, South Africa between Eswatini and the coast. In a wider sense it may also include the southernmost region of Mozambique. The bi ...
).
Naming and taxonomy
''Haworthia'' is a genus within the family
Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...
Asphodelaceae
Asphodelaceae is a family of flowering plants in the order Asparagales. Such a family has been recognized by most taxonomists, but the circumscription has varied widely. In its current circumscription in the APG IV system, it includes about 40 ...
, subfamily Asphodeloideae
Asphodeloideae is a subfamily of the monocot family Asphodelaceae in the order Asparagales. It has previously been treated as a separate family, Asphodelaceae ''sensu stricto''. The family Asphodelaceae has now been proposed to be a nomen conserv ...
. The genus is named after the botanist Adrian Hardy Haworth
Adrian is a form of the Latin given name Adrianus or Hadrianus. Its ultimate origin is most likely via the former river Adria from the Venetic and Illyrian word ''adur'', meaning "sea" or "water".
The Adria was until the 8th century BC the main ...
. B. Bayer recognised approximately 60 species in a review of the genus in 2012, whereas other taxonomists are very much less conservative. Related genera are ''Aloe
''Aloe'' (; also written ''Aloë'') is a genus containing over 650 species of flowering succulent plants.WFO (2022): Aloe L. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-4000001341. Accessed on: 06 Nov 2022 The most wid ...
'', ''Gasteria
''Gasteria'' is a genus of succulent plants, native to South Africa (and the far south-west corner of Namibia).
Naming
The genus is named for its stomach-shaped flowers (''"gaster"'' is Latin for "stomach") that result from the swollen base on t ...
'' and '' Astroloba'' and intergeneric hybrids are known.
Subdivisions
The classification of the flowering plant subfamily Asphodeloideae is weak, and concepts of the genera are not well substantiated. ''Haworthia'' has been a similarly a weakly contrived genus. Because of their horticultural interest, its taxonomy has been dominated by amateur collectors, and the literature is rife with misunderstanding of what the taxa actually are or should be. Recent phylogenetic
In biology, phylogenetics (; from Greek φυλή/ φῦλον [] "tribe, clan, race", and wikt:γενετικός, γενετικός [] "origin, source, birth") is the study of the evolutionary history and relationships among or within groups o ...
studies have demonstrated that the traditional divisions of the genus are actually relatively unrelated (''Hexangulares'' was shown to be a sister-group of genus ''Gasteria
''Gasteria'' is a genus of succulent plants, native to South Africa (and the far south-west corner of Namibia).
Naming
The genus is named for its stomach-shaped flowers (''"gaster"'' is Latin for "stomach") that result from the swollen base on t ...
'', ''Robustipedunculares'' more closely related to genus '' Astroloba'', and ''Haworthia'' as an out-group related to ''Aloe
''Aloe'' (; also written ''Aloë'') is a genus containing over 650 species of flowering succulent plants.WFO (2022): Aloe L. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-4000001341. Accessed on: 06 Nov 2022 The most wid ...
''). In recognition of the polyphyletic nature of the genus, ''Haworthiopsis
''Haworthiopsis'' is a genus of succulent plants in the subfamily Asphodeloideae. The genus was previously included in ''Haworthia''. Species in the genus are typically short perennial plants, with leaves often arranged in a rosette and frequent ...
'' and ''Tulista
''Tulista'' is a small genus of succulent plants endemic to South Africa. They were formerly included within the genus ''Haworthia''.
Characteristics
The genus is characterised by a large size (relative to other haworthias), by their stemless ro ...
'' have been split off.
Botanists had long noticed differences in the flowers the three subgenera, but had previously considered those differences to be inconsequential, although the differences between species in the same subgenus definitely are. The roots, leaves and rosettes do demonstrate some generic differences while wide variations occur even within one species.
Species
Many species of ''Haworthia'' have been moved to ''Haworthiopsis
''Haworthiopsis'' is a genus of succulent plants in the subfamily Asphodeloideae. The genus was previously included in ''Haworthia''. Species in the genus are typically short perennial plants, with leaves often arranged in a rosette and frequent ...
'' and ''Tulista
''Tulista'' is a small genus of succulent plants endemic to South Africa. They were formerly included within the genus ''Haworthia''.
Characteristics
The genus is characterised by a large size (relative to other haworthias), by their stemless ro ...
'', in particular since the last update of The Plant List
The Plant List was a list of botanical names of species of plants created by the Royal Botanic Gardens, Kew and the Missouri Botanical Garden and launched in 2010. It was intended to be a comprehensive record of all known names of plant species ...
(2013), which contains about 150 accepted species of ''Haworthia''. The actual number and identification of the species is not well established; many species are listed as "unresolved" for lack of sufficient information, and the full list reflects the difficulties of ''Haworthia'' taxonomy, including many varieties and synonyms. The World Checklist of Selected Plant Families
The World Checklist of Selected Plant Families (usually abbreviated to WCSP) is an "international collaborative programme that provides the latest peer reviewed and published opinions on the accepted scientific names and synonyms of selected plan ...
has been updated to exclude the species now in ''Haworthiopsis'' and ''Tulista''. The species it accepts are listed below, excluding ''Haworthia kingiana'' and ''Haworthia minor'', placed in ''Tulista'' by other sources.
* '' Haworthia akaonii'' M.Hayashi – Western Cape Provinces
The Cape Provinces of South Africa is a biogeographical area used in the World Geographical Scheme for Recording Plant Distributions (WGSRPD). It is part of the WGSRPD region 27 Southern Africa. The area has the code "CPP". It includes the Sout ...
* '' Haworthia angustifolia'' Haw. – Southern Cape Provinces
* ''Haworthia ao-onii
''Haworthia'' is a large genus of small succulent plants endemic to Southern Africa
(Mozambique, Namibia, Lesotho, Eswatini and South Africa).
Like the aloes, they are members of the subfamily Asphodeloideae and they generally resemble miniatu ...
'' M.Hayashi – Cape Provinces
* '' Haworthia arachnoidea'' (L.) Duval – Southwestern Cape Provinces
* '' Haworthia aristata'' Haw. – Southern Cape Provinces
* '' Haworthia bayeri'' J.D.Venter & S.A.Hammer – Southwestern Cape Provinces
* '' Haworthia blackburniae'' W.F.Barker – Southwestern Cape Provinces
* '' Haworthia bolusii'' Baker – Southern central and southern Cape Provinces to Free State
* '' Haworthia caesia'' M.Hayashi – Western Cape Provinces
* '' Haworthia calva'' M.Hayashi – Eastern Cape Provinces
* '' Haworthia chloracantha'' Haw. – Southwestern Cape Provinces
* '' Haworthia coarctata''
* '' Haworthia compacta'' (Triebner) Breuer – Cape Provinces
* '' Haworthia cooperi'' Baker – Southern Cape Provinces
* ''Haworthia cymbiformis
''Haworthia cymbiformis'' is a species of the genus ''Haworthia'' in the family Asphodelaceae, endemic to the Eastern Cape Province in South Africa.
Description
Plants are small and grow clumps of rosettes of thick, fleshy, light green leaves ...
'' (Haw.) Duval – Southern and southeastern Cape Provinces
* ''Haworthia decipiens
''Haworthia decipiens'' ("Papierrosie") is a species of ''Haworthia'', in the family Asphodelaceae, in the Western Cape and Eastern Cape Provinces of South Africa.
Description
''Haworthia decipiens'' is frequently confused with its western rela ...
'' Poelln. – Southern Cape Provinces
* '' Haworthia diaphana'' M.Hayashi – Eastern Cape Provinces
* '' Haworthia elizeae'' Breuer – Western Cape Provinces
* ''Haworthia emelyae
''Haworthia emelyae'' (synonym with ''Haworthia picta'') is a species of the genus ''Haworthia'' in the family Asphodelaceae, endemic to the Western Cape Province in South Africa.
Description
This species is one of the ''"retuse"'' species of ' ...
'' Poelln. – Southwestern Cape Provinces
* '' Haworthia fasciata''
* '' Haworthia floribunda'' Poelln. – Southwestern Cape Provinces
* '' Haworthia fukuyae'' M.Hayashi – Eastern Cape Provinces
* '' Haworthia grenieri'' Breuer – Western Cape Provinces
* '' Haworthia heidelbergensis'' G.G.Sm. – Southwestern Cape Provinces
* ''Haworthia herbacea
''Haworthia herbacea'' is a species of succulent plant in the genus Haworthia native to the Cape Province
The Province of the Cape of Good Hope ( af, Provinsie Kaap die Goeie Hoop), commonly referred to as the Cape Province ( af, Kaapprov ...
'' (Mill.) Stearn – Southwestern Cape Provinces
* ''Haworthia lockwoodii
''Haworthia lockwoodii'' is a species of succulent plant in the genus ''Haworthia''. Native to the Cape Province
The Province of the Cape of Good Hope ( af, Provinsie Kaap die Goeie Hoop), commonly referred to as the Cape Province ( af, ...
'' Archibald – Southwestern Cape Provinces
* '' Haworthia maculata'' (Poelln.) M.B.Bayer – Southwestern Cape Provinces
* ''Haworthia magnifica
''Haworthia magnifica'' is a species of the genus ''Haworthia'' belonging to the family Asphodelaceae.
It is popular as an ornamental in cultivation, especially in the form of its unique and colourful variety, ''"splendens"''.
Etymology
The gen ...
'' Poelln. – Southwestern Cape Provinces
* ''Haworthia maraisii
''Haworthia maraisii'' is a species of flowering plant in the family Asphodeloideae, found in the southwest Cape Provinces of South Africa. It has been treated as a variety of either ''Haworthia magnifica'' or ''Haworthia mirabilis'', but is acce ...
'' Poelln. – Southwestern Cape Provinces
* '' Haworthia marumiana'' Uitewaal – Cape Provinces
* ''Haworthia mirabilis
''Haworthia mirabilis'' is a species of the genus ''Haworthia'' belonging to the family (biology), family Asphodelaceae.
Etymology
The genus name ''Haworthia'' honors the British botanist Adrian Hardy Haworth (1767–1833), while the species epi ...
'' (Haw.) Haw. – Southwestern Cape Provinces
* '' Haworthia mollis'' M.Hayashi – Eastern Cape Provinces
* '' Haworthia monticola'' Fourc. – Southwestern Cape Provinces
* ''Haworthia mucronata
''Haworthia mucronata'' is a species of the genus ''Haworthia'' in the family Asphodelaceae, endemic to the Little Karoo region, in the Western Cape Province of South Africa.
Etymology
The genus name ''Haworthia'' honors the British botanist A ...
'' Haw. – Southwestern Cape Provinces
* '' Haworthia mutica'' Haw. – Southwestern Cape Provinces
* ''Haworthia nortieri
''Haworthia nortieri'' is a species of succulent plant belonging to the genus ''Haworthia'' and is classified under the family Asphodelaceae. It is native to Southern Africa, southwest of Northern Cape.
Description
.''H. nortieri has'' ovate-la ...
'' G.G.Sm. – Southwestern Cape Provinces
* '' Haworthia outeniquensis'' M.B.Bayer – Southwestern Cape Provinces
* '' Haworthia parksiana'' Poelln. – Southwestern Cape Provinces
* '' Haworthia pubescens'' M.B.Bayer – Southwestern Cape Provinces
* '' Haworthia pulchella'' M.B.Bayer – Southwestern Cape Provinces
* '' Haworthia pygmaea'' Poelln. – Southwestern Cape Provinces
* '' Haworthia regina'' M.Hayashi – Eastern Cape Provinces
* '' Haworthia reinwardtii''
* '' Haworthia reticulata'' (Haw.) Haw. – Southwestern Cape Provinces
* ''Haworthia retusa
''Haworthia retusa'' is a species of flowering plants of the genus ''Haworthia'' in the family Asphodelaceae, endemic to a very small area around Riversdale, in the Western Cape Province in South Africa.
Growing to tall and broad, it is a peren ...
'' (L.) Duval – Southwestern Cape Provinces
* ''Haworthia rossouwii
''Haworthia rossouwii'' is a species of succulent plant belonging to the genus ''Haworthia'' and is classified under the family Asphodelaceae. It is native to Southern Africa, in the Overberg region of the Western Cape Province.
Description and ...
'' Poelln. – Cape Provinces
* '' Haworthia sapphaia'' M.Hayashi – Eastern Cape Provinces
* '' Haworthia semiviva'' (Poelln.) M.B.Bayer – Cape Provinces
* '' Haworthia springbokvlakensis'' C.L.Scott – Southern Cape Provinces
* '' Haworthia subularis'' M.Hayashi – Eastern Cape Provinces
* '' Haworthia tesselata''
* '' Haworthia transiens'' (Poelln.) M.Hayashi – Southern Cape Provinces
* ''Haworthia truncata
''Haworthia truncata'', locally known as horse's teeth, is a species of succulent plant in the genus ''Haworthia''. It is found in the Karoo, Little Karoo region, in the far east of the Western Cape Province, South Africa.
Description
It is a ...
'' Schönland – Southwestern Cape Provinces
* '' Haworthia turgida'' Haw. – Southwestern Cape Provinces
* '' Haworthia variegata'' L.Bolus – Southwestern Cape Provinces
* '' Haworthia veltina'' M.Hayashi – Eastern Cape Provinces
* '' Haworthia villosa'' M.Hayashi – Eastern Cape Provinces
* '' Haworthia vlokii'' M.B.Bayer – Southwestern Cape Provinces
* '' Haworthia wittebergensis'' W.F.Barker – Southwestern Cape Provinces
* '' Haworthia zantneriana'' Poelln. – Southern Cape Provinces
Cultivation
There is widespread special collector interest, and some species such as ''Haworthia cymbiformis
''Haworthia cymbiformis'' is a species of the genus ''Haworthia'' in the family Asphodelaceae, endemic to the Eastern Cape Province in South Africa.
Description
Plants are small and grow clumps of rosettes of thick, fleshy, light green leaves ...
'' are fairly common house and garden plants.
Almost all ''Haworthia'' species are naturally adapted for semi-shade conditions (in habitat they tend to grow under bushes or rock overhangs) and they are therefore healthiest in shade or semi-shade. Some species like '' Haworthia pumila'' and ''Haworthia truncata
''Haworthia truncata'', locally known as horse's teeth, is a species of succulent plant in the genus ''Haworthia''. It is found in the Karoo, Little Karoo region, in the far east of the Western Cape Province, South Africa.
Description
It is a ...
'' can be adapted to tolerate full-sun however.
All ''Haworthia'' species favour extremely well-drained soil (in habitat they tend to grow in poor sands, in rocky areas). Watering depends on the species (winter or summer rainfall) but most of the common species are tolerant of a variety of watering routines. Over-watering can cause the roots to rot. Rarer species may have more specific requirements. All haworthias are sensitive to frost, and they are rated as winter hardy to USDA zone 10.
''Haworthia'' species reproduce both through seed and through budding, or offsets. Certain species or clones may be more successful or rapid in offset 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.
Gallery for identification
Image:Haworthia arachnoidea - cobweb aloe.jpg, '' Haworthia arachnoidea'' has numerous dark-green leaves, which have no translucent tips and bear a dense hairy web of spines.
File:Haworthia nortieri - MBB arizona.jpg, ''Haworthia nortieri
''Haworthia nortieri'' is a species of succulent plant belonging to the genus ''Haworthia'' and is classified under the family Asphodelaceae. It is native to Southern Africa, southwest of Northern Cape.
Description
.''H. nortieri has'' ovate-la ...
'', from the far north-west of the Western Cape
The Western Cape is a province of South Africa, situated on the south-western coast of the country. It is the fourth largest of the nine provinces with an area of , and the third most populous, with an estimated 7 million inhabitants in 2020 ...
, has opaque leaves, covered in oval, pellucid spots.
File:Haworthia maculata - rawsonville 1.jpg, '' Haworthia maculata'', showing distinctive red-purple, spotted, normally turgid leaves, with tiny bristles on margins & keels.
File:Haworthia reticulata - Cape Town 6.jpg, The highly proliferous '' Haworthia reticulata'' bears tiny teeth and a reticulated pattern on its leaves.
File:Haworthia herbaceae var herbaceae - CT 6.jpg, ''Haworthia herbacea
''Haworthia herbacea'' is a species of succulent plant in the genus Haworthia native to the Cape Province
The Province of the Cape of Good Hope ( af, Provinsie Kaap die Goeie Hoop), commonly referred to as the Cape Province ( af, Kaapprov ...
'', showing distinctive yellow-green (''"herbacea"'') colour, and spined margins & keels.
File:Haworthia pubescens - MBB Sandberg - Copy.jpg, '' Haworthia pubescens'' co-occurs with ''H.herbacea'' but is very finely "pubescent" (covered in velvety fur)
File:Haworthia floribunda MBB Appelbos.jpg, '' Haworthia floribunda'' has relatively few dark, slender, twisted leaves with rounded ends.
File:Haworthia chloracantha var chloracantha - Cape Town 6.jpg, '' Haworthia chloracantha'' forms clumps with slender, curved, yellow-green leaves
File:5 Haworthia variegata MBB Diepkloof.jpg, '' Haworthia variegata'' has thin, straight, erect leaves, with variegated spined margins.
File:Haworthia maraisii Aston South Africa 1.jpg, ''Haworthia maraisii
''Haworthia maraisii'' is a species of flowering plant in the family Asphodeloideae, found in the southwest Cape Provinces of South Africa. It has been treated as a variety of either ''Haworthia magnifica'' or ''Haworthia mirabilis'', but is acce ...
'' is a tiny, dark-coloured haworthia, with bristled, retused leaves.
File:Haworthia parksiana - Acilliers South Africa.jpg, '' Haworthia parksiana'', the smallest Haworthia species.
File:5 Haworthia mirabilis - MBB Uitkyk.jpg, ''Haworthia mirabilis
''Haworthia mirabilis'' is a species of the genus ''Haworthia'' belonging to the family (biology), family Asphodelaceae.
Etymology
The genus name ''Haworthia'' honors the British botanist Adrian Hardy Haworth (1767–1833), while the species epi ...
'' has sharp-pointed, translucent leaf faces with marginal spines
File:Haworthia mirabilis badia MBB 2 Napier.jpg, ''Haworthia mirabilis'' var. ''badia'' has reddish-brown, attenuate leaves
File:Haworthia heidelbergensis var heidelbergensis 5.jpg, '' Haworthia heidelbergensis'' possibly a form of ''H. mirabilis'', with long, thin, bristle-tipped leaves, that are more outward spreading.
File:5 Haworthia mirabilis magnifica - MBB type Frehse Reserve Riversdale c.jpg, ''Haworthia magnifica
''Haworthia magnifica'' is a species of the genus ''Haworthia'' belonging to the family Asphodelaceae.
It is popular as an ornamental in cultivation, especially in the form of its unique and colourful variety, ''"splendens"''.
Etymology
The gen ...
'' is sometimes considered to be a form of ''H. mirabilis''. It is distinguished by its flowers, but usually has dark, lined, triangular, scabrid leaf-faces.
File:Xanthorrhoeaceae - Haworthia magnifica var. splendens.JPG, '' Haworthia magnifica var. splendens'' is a particularly ornate variety with flecked leaves, prized by horticulturalists as ''"Haworthia splendens"''.
File:Haworthia magnifica var acuminata - MBB Vleesbaai 2.jpg, ''Haworthia magnifica'' var. ''acuminata'' has a lighter colour and more pointed, "acuminate" leaves
File:Haworthia magnifica var atrofusca - Basryhoogte MBB.jpg, ''Haworthia magnifica'' var. ''atrofusca'' is a very dark, reddish-brown, rough-surfaced variety
File:1 Haworthia turgida var turgida - Kirstenbosch.jpg, '' Haworthia turgida'' is a compact, clumping, retuse haworthia, with swollen, "turgid", light-green leaves
File:Haworthia mutica - stellenbosch 1.jpg, '' Haworthia mutica'' has one or two lines and a pale, cloudy, mat surface on its compact, slightly rounded ("mutica") leaves
File:2 Haworthia retusa - Acilliers - RSA 1.jpg, ''Haworthia retusa
''Haworthia retusa'' is a species of flowering plants of the genus ''Haworthia'' in the family Asphodelaceae, endemic to a very small area around Riversdale, in the Western Cape Province in South Africa.
Growing to tall and broad, it is a peren ...
'' has a recognisable shiny leaf-face on its retuse leaves, and a light green colour
File:1 Haworthia pygmaea in cultivation a.jpg, '' Haworthia pygmaea'' has flat, rough, scabrous or papillate
This glossary of botanical terms is a list of definitions of terms and concepts relevant to botany and plants in general. Terms of plant morphology are included here as well as at the more specific Glossary of plant morphology and Glossary o ...
leaf surfaces
File:Haworthia pygmaea var argenteo maculosa - MBB Mossgas 1.jpg, '' "agenteo-maculosa"'' is a smoother variety of '' Haworthia pygmaea'' with silver spots ("argenteo maculosa")
File:Haworthia emelyae 1.jpg, ''Haworthia emelyae
''Haworthia emelyae'' (synonym with ''Haworthia picta'') is a species of the genus ''Haworthia'' in the family Asphodelaceae, endemic to the Western Cape Province in South Africa.
Description
This species is one of the ''"retuse"'' species of ' ...
'' has compact, bulging leaves which are often pink-flecked.
File:Haworthia bayeri in habitat South Africa 2.jpg, '' Haworthia bayeri'' has dark leaves with slightly rounded leaf tips.
File:Haworthia emelyae v. comptoniana yc.jpg, ''Haworthia emelyae'' var. ''comptoniana'' is a large, lighter coloured form, with a clear reticulated pattern on the broad leaf faces
File:Juvenile Haworthia springbokvlakensis in cultivation.jpg, '' Haworthia springbokvlakensis'' has round, bulging, translucent leaf faces
File:Haworthia truncata 001.JPG, ''Haworthia truncata
''Haworthia truncata'', locally known as horse's teeth, is a species of succulent plant in the genus ''Haworthia''. It is found in the Karoo, Little Karoo region, in the far east of the Western Cape Province, South Africa.
Description
It is a ...
'' ("Horse's teeth")
File:Haworthia wittebergensis 3.jpg, '' Haworthia wittebergensis'' showing its distinctive thin bristle-like leaves
File:Winterbourne - Haworthia Semiviva (6120430747).jpg, '' Haworthia semiviva'' drys its leaves into a papery sheath in the heat of summer.
File:Haworthia lockwoodii (2-2) (4875874684).jpg, ''Haworthia lockwoodii
''Haworthia lockwoodii'' is a species of succulent plant in the genus ''Haworthia''. Native to the Cape Province
The Province of the Cape of Good Hope ( af, Provinsie Kaap die Goeie Hoop), commonly referred to as the Cape Province ( af, ...
'' drys its leaves into a papery sheath in the heat of summer.
File:5 Haworthia marumiana redii MBB.jpg, '' Haworthia marumiana'' var. ''redii''
File:1 Haworthia mucronata var mucronata - MBB barrydale.jpg, ''Haworthia mucronata
''Haworthia mucronata'' is a species of the genus ''Haworthia'' in the family Asphodelaceae, endemic to the Little Karoo region, in the Western Cape Province of South Africa.
Etymology
The genus name ''Haworthia'' honors the British botanist A ...
'' has translucent margins and keels on its soft, pointed (''"mucronate"'') leaves.
File:1 Haworthia decipiens - Prince Albert a.jpg, ''Haworthia decipiens
''Haworthia decipiens'' ("Papierrosie") is a species of ''Haworthia'', in the family Asphodelaceae, in the Western Cape and Eastern Cape Provinces of South Africa.
Description
''Haworthia decipiens'' is frequently confused with its western rela ...
'' has light green, wide, flat, semi-translucent leaves, that have prodigious bristles on the margins (less so on the bottom leaf faces)
File:1 Haworthia cooperi - Kirstenbosch.jpg, '' Haworthia cooperi'' (showing translucent "window" panels at the tips of its leaves)
File:Haworthia cooperi - Tower Hill Botanic Garden.JPG, An extreme rounded form of '' Haworthia cooperi''
File:Haworthia cymbiformis - SBG 8.jpg, ''Haworthia cymbiformis
''Haworthia cymbiformis'' is a species of the genus ''Haworthia'' in the family Asphodelaceae, endemic to the Eastern Cape Province in South Africa.
Description
Plants are small and grow clumps of rosettes of thick, fleshy, light green leaves ...
'' has light green, even-coloured, boat-shaped leaves (''"cymbiformis"'' = ''"boat shaped"'')
File:Haworthia blackburneae var blackburneae - Stellenbosch.jpg, '' Haworthia blackburneae'' is a thin, grass-like species
References
External links
Haworthia (Ingo Breuer)
Haworthia (Jakub Jilemicky)
Asphodelaceae Anonymous (Lawrence Loucka)
Haworthia Society
Haworthia Updates (M.B.Bayer)
{{Taxonbar, from=Q133983
Flora of Southern Africa
Asphodelaceae genera