Disphyma crassifolium
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Disphyma crassifolium, commonly known as round-leaved pigface[1] or salty fingers[2] is a species of flowering plant in the family Aizoaceae native to Australia and the Cape Provinces of South Africa. It is a prostrate, succulent annual shrub or short-lived perennial plant with stems up to Template:Cvt long, leaves that are three-sided in cross-section with a rounded lower angle, and purple daisy-like flowers with staminodes up to Template:Cvt long.
Description
Disphyma crassifolium is a prostrate, succulent, annual or short-lived perennial shrub that typically grows to a height of Template:Cvt and has stems up to Template:Cvt long. Its leaves are club-shaped, more or less round to three-sided in cross-section, Template:Cvt long and Template:Cvt wide. The flowers are Template:Cvt wide with a perianth tube Template:Cvt wide, the longer lobes Template:Cvt long with purple, petal-like staminodes Template:Cvt 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 Template:Cvt long and wide before opening.[1][3]
Taxonomy
Disphyma crassifolium was first published in 1753 as Mesembryanthemum crassifolium by Carl Linnaeus in Species Plantarum from species collected in southern Africa.[4][5][6] In 1925, Nicholas Edward Brown raised the genus Disphyma in The Gardeners' Chronicle[7] and in 1927 Harriet Margaret Louisa Bolus moved Linnaeus's M. crassifolium into the new genus as Disphyma crassifolium in the botanical magazine Flowering Plants of South Africa.[8]
In 1803, Adrian Hardy Haworth 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.[9] In 1976, Robert Chinnock moved M. clavellatum to the genus Disphyma as D. clavellatum in the New Zealand Journal of Botany.[10][11] Then, in 1986, John Peter Jessop reduced Disphyma clavellatum to a subspecies, Disphyma crassifolium subsp. clavellatum in Flora of South Australia,[12] a name accepted by the Australian Plant Census and Plants of the World Online.[13][14]
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.[1][3]
References
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