''Disphyma crassifolium'', commonly known as round-leaved pigface or salty fingers is a species of flowering plant in the family

Aizoaceae The Aizoaceae (), or fig-marigold family, is a large family of dicotyledonous flowering plants containing 135 genera and about 1,800 species. Several genera are commonly known as 'ice plants' or 'carpet weeds'. The Aizoaceae are also referred to a ...

native to Australia and the

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 Sou ...

of South Africa. It is a prostrate,

succulent 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 ...

annual Annual may refer to: *Annual publication, periodical publications appearing regularly once per year **Yearbook **Literary annual *Annual plant *Annual report *Annual giving *Annual, Morocco, a settlement in northeastern Morocco *Annuals (band), a ...

shrub or short-lived

perennial plant In horticulture, the term perennial (''wikt:per-#Prefix, per-'' + ''wikt:-ennial#Suffix, -ennial'', "through the year") is used to differentiate a plant from shorter-lived annual plant, annuals and biennial plant, biennials. It has thus been d ...

with stems up to long, leaves that are three-sided in cross-section with a rounded lower angle, and purple daisy-like flowers with

staminodes In botany, a staminode is an often rudimentary, sterile or abortive stamen, which means that it does not produce pollen.Jackson, Benjamin, Daydon; ''A Glossary of Botanic Terms with their Derivation and Accent''; Published by Gerald Duckworth & Co ...

up to long.

Description

''Disphyma crassifolium'' is a prostrate, succulent, annual or short-lived perennial shrub that typically grows to a height of and has stems up to long. Its leaves are club-shaped, more or less round to three-sided in cross-section, long and wide. The flowers are wide with a

perianth The perianth (perigonium, perigon or perigone in monocots) is the non-reproductive part of the flower. It is a structure that forms an envelope surrounding the sexual organs, consisting of the calyx (sepals) and the corolla (petals) or tepal ...

tube wide, the longer lobes long with purple, petal-like

staminode In botany, a staminode is an often rudimentary, sterile or abortive stamen, which means that it does not produce pollen.Jackson, Benjamin, Daydon; ''A Glossary of Botanic Terms with their Derivation and Accent''; Published by Gerald Duckworth & Co ...

s long that are white on the lower surface. Flowering mainly occurs from October to February and the fruit is a conical capsule that is about long and wide before opening.

Taxonomy

''Disphyma crassifolium'' was first published in 1753 as ''Mesembryanthemum crassifolium'' by

Carl Linnaeus Carl Linnaeus (23 May 1707 – 10 January 1778), also known after ennoblement in 1761 as Carl von Linné,#Blunt, Blunt (2004), p. 171. was a Swedish biologist and physician who formalised binomial nomenclature, the modern system of naming o ...

in ''

Species Plantarum ' (Latin for "The Species of Plants") is a book by Carl Linnaeus, originally published in 1753, which lists every species of plant known at the time, classified into genus, genera. It is the first work to consistently apply binomial nomenclature ...

'' from species collected in southern Africa. In 1925,

Nicholas Edward Brown Nicholas Edward Brown (11 July 1849 in Redhill, Surrey – 25 November 1934 in Kew Gardens, London) was an English plant taxonomist and authority on succulents. He was also an authority on several families of plants, including Asclepiadaceae, ...

raised the genus ''

Disphyma ''Disphyma'' is a genus of flowering plants in the family Aizoaceae that are native to New Zealand, Australia and southern Africa. Plants in this genus are prostrate, annual or short-lived perennial shrubs with succulent leaves and daisy-like fl ...

'' in ''

The Gardeners' Chronicle ''The Gardeners' Chronicle'' was a British horticulture periodical. It lasted as a title in its own right for nearly 150 years and is still extant as part of the magazine '' Horticulture Week''. History Founded in 1841 by the horticulturists Jose ...

'' and in 1927

Harriet Margaret Louisa Bolus Harriet Margaret Louisa Bolus ''née'' Kensit (31 July 1877, Burgersdorp – 5 April 1970, Cape Town) was a South African botanist and taxonomist, and the longtime curator of the Bolus Herbarium, from 1903. Bolus also has the legacy of author ...

moved Linnaeus's ''M. crassifolium'' into the new genus as ''Disphyma crassifolium'' in the botanical magazine '' Flowering Plants of South Africa''. In 1803,

Adrian Hardy Haworth Adrian Hardy Haworth (19 April 1767, in Kingston upon Hull, Hull – 24 August 1833, in Chelsea, London, Chelsea) was an England, English entomologist, botanist and carcinologist. Family The younger son of Benjamin Haworth, of Haworth Hall and ...

described ''Mesmbryanthemum clavellatum'' in his book ''Miscellanea Naturalia, sive Dissertationes Variae ad Historiam Naturalem Spectantes'' from plants raised from seed collected in Australia by

Robert Brown Robert Brown may refer to: Robert Brown (born 1965), British Director, Animator and author Entertainers and artists * Washboard Sam or Robert Brown (1910–1966), American musician and singer * Robert W. Brown (1917–2009), American printmaker ...

. In 1976,

Robert Chinnock Robert James (Bob) Chinnock (born 3 July 1943) is a New Zealand-born Australian botanist who worked at the State Herbarium of South Australia as a senior biologist. He retired in 2008 but still works as an honorary research associate. His resear ...

moved ''M. clavellatum'' to the genus ''Disphyma'' as ''D. clavellatum'' in the ''

New Zealand Journal of Botany New or NEW may refer to: Music * New, singer of K-pop group The Boyz * ''New'' (album), by Paul McCartney, 2013 ** "New" (Paul McCartney song), 2013 * ''New'' (EP), by Regurgitator, 1995 * "New" (Daya song), 2017 * "New" (No Doubt song), 19 ...

''. Then, in 1986,

John Peter Jessop John is a common English name and surname: * John (given name) * John (surname) John may also refer to: New Testament Works * Gospel of John, a title often shortened to John * First Epistle of John, often shortened to 1 John * Second E ...

reduced ''Disphyma clavellatum'' to a subspecies, ''Disphyma crassifolium'' subsp. ''clavellatum'' in ''Flora of South Australia'', a name accepted by the

Australian Plant Census The Australian Plant Census (APC) provides an online interface to currently accepted, published, scientific names of the vascular flora of Australia, as one of the output interfaces of the national government Integrated Biodiversity Information Sys ...

and

Plants of the World Online Plants of the World Online (POWO) is an online taxonomic database published by the Royal Botanic Gardens, Kew. History Following the Convention on Biological Diversity, the Royal Botanic Gardens in Kew launched Plants of the World Online i ...

Distribution and habitat

''Disphyma crassifolium'' is widely distributed in South Africa and Australia. It grows in saline areas such as coastal dunes and samphire flats, and tolerates a range of soils including sand, loam and clay.

References

{{Taxonbar, from=Q17024717 Aizoaceae Plants described in 1753 Flora of Australia Flora of the Cape Provinces Taxa named by Carl Linnaeus