Suaeda

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Suaeda
Suaeda maritima.jpg
Suaeda maritima
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Amaranthaceae
Subfamily: Suaedoideae
Genus: Suaeda
Forssk. ex J.F. Gmel.
Species

About 110

Suaeda is a genus of plants also known as seepweeds [1] and sea-blites. Most species are confined to saline or alkaline soil habitats, such as coastal salt-flats and tidal wetlands. Many species have thick, succulent leaves, a characteristic seen in various plant genera that thrive in salty habitats (halophile plants).

Contents

There are about 110 species in the genus Suaeda. [2]

The most common species in northwestern Europe is S. maritima. It grows along the coasts, especially in saltmarsh areas, and is known in Britain as "common sea-blite", but as "herbaceous seepweed" in the USA. It is also common along the east coast of North America from Virginia northward. One of its varieties is common in tropical Asia on the land-side edge of mangrove tidal swamps. Another variety of this polymorphic species is common in tidal zones all around Australia (Suaeda maritima var. australis is also classed as S. australis). On the coasts of the Mediterranean Sea a common Suaeda species is S. vera. This is known as "shrubby sea-blite" in English. It grows taller and forms a bush.

The name Suaeda comes from an oral (non-literary) Arabic name for the Suaeda vera species transliterated as suaed, sawād or suēd, [3] and it was assigned as the genus name by the 18th century taxonomist Peter Forsskål during his visit to the Red Sea area in the early 1760s. [2] [4] Forsskål's book, Flora Aegyptiaco-Arabica, published 1775, in Latin, declares Suæda as a newly created genus name, with the name taken from an Arabic name Suæd and presents the species members of the new genus. [5]

The genus includes plants using either C3 or C4 carbon fixation. The latter pathway evolved independently three times in the genus and is now used by around 40 species. S. aralocaspica, classified in its own section Borszczowia, uses a particular type of C4 photosynthesis without the typical "Kranz" leaf anatomy. [6] [7] [8]

Uses

In the medieval and early post-medieval centuries suaeda was harvested and burned, and the ashes were processed as a source for sodium carbonate for use in glass-making; see glasswort.

In Mexico, some species such as Suaeda pulvinata, called romeritos, are cooked in a traditional festive dish called either revoltijo or romeritos . It is also eaten as wild greens (quelites), or as edible herbs grown as part of the crop-growing system called milpa.

Selected species

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Suaeda australis, the austral seablite, is a species of plant in the family Amaranthaceae, native to Australia. It grows to 10 to 90 cm in height, with a spreading habit and branching occurring from the base. The leaves are up to 40 mm in length and are succulent, linear and flattened. They are light green to purplish-red in colour.

<i>Suaeda esteroa</i> Species of aquatic plant

Suaeda esteroa is a species of flowering plant in the family Amaranthaceae known by the common name estuary seablite. It is a yellow-green to reddish subshrub with fleshy, succulent leaves. It is native to the estuaries and salt marshes of coastal southern California and Baja California.

Suaeda aralocaspica is a species of plant in the family Amaranthaceae that is restricted to the deserts of Central Asia. It is a halophyte and uses C4 carbon fixation but lacks the characteristic leaf anatomy of other C4 plants (known as kranz anatomy). Carrying out complete C4 photosynthesis within individual cells, these plants instead are known as single‐cell C4 system or SCC4 plants. This makes them distinct from typical C4 plants, which require the collaboration of two types of photosynthetic cells. SCC4 plants have features that make them potentially valuable in engineering higher photosynthetic efficiencies in agriculturally important C3 carbon fixation species such as rice. To address this, the 467 Mb genome of S. aralocaspica has been sequenced to help understanding of the evolution of SCC4 photosynthesis and contribute to the engineering of C4 photosynthesis into other economically important crops.

<i>Suaeda calceoliformis</i> Species of flowering plant

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<i>Suaeda californica</i> Species of aquatic plant

Suaeda californica is a rare species of flowering plant in the amaranth family known by the common name California seablite. It is now endemic to San Luis Obispo County, California, where it is known from a few occurrences in the marshes around Morro Bay, historical populations around San Francisco Bay have been extirpated.

<i>Suaeda nigra</i> Species of flowering plant

Suaeda nigra, often still known by the former name Suaeda moquinii, is a species of flowering plant in the amaranth family, known by the vernacular names bush seepweed or Mojave sea-blite.

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The Suaedoideae are a subfamily of plants in the family Amaranthaceae.

<i>Suaeda vera</i> Species of flowering plant in the amaranth family Amaranthaceae

Suaeda vera, also known as shrubby sea-blite, shrubby seablight or in the USA sometimes as alkali seepweed, is a species of flowering plant in the family Amaranthaceae. It is a small shrub, with very variable appearance over its wide range. It is a halophyte, and occurs in arid and semi-arid saltflats, salt marshes and similar habitats.

<i>Suaeda maritima</i> Species of flowering plant in the amaranth family Amaranthaceae

Suaeda maritima is a species of flowering plant in the family Amaranthaceae known by the common names herbaceous seepweed and annual seablite.

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<i>Suaeda pulvinata</i> Species of flowering plant

Suaeda pulvinata is an endemic seepweed from Mexico. It lives in the shores of Lake Texcoco and Lake Totolcingo. It lives underwater as an aquatic plant for half of the year and on dry land as a terrestrial plant for the other half due to the changing levels of the lakes that it inhabits. It is a perennial flat herb with prostrate stems. Its leaves and inflorescences are green to reddish in color.

<i>Cleome angustifolia</i> Species of flowering plant

Cleome angustifolia, known as golden cleome, yellow cleome or yellow mouse whiskers, is an African species of plant in the Cleomaceae family. It is common along roadsides and in disturbed areas and is eaten as vegetable locally. Swedish naturalist Peter Forsskål described C. angustifolia in 1775. It is one of three species in genus Cleome (the others being C. gynandra and C. oxalidea) that independently acquired the C4 pathway of carbon fixation. A species close to C. angustifolia, Cleome paradoxa, is C3–C4 intermediate.

References

  1. USDA, NRCS (n.d.). "Suaeda". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 4 December 2015.
  2. 1 2 Ferren, Wayne R. Jr.; Jochen Schenk, H. (2003). "Suaeda". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico. Vol. 4. Oxford: Oxford University Press. pp. 260, 360, 389, 390. ISBN   9780195173895.
  3. Article Soda, by Arnald Steiger, year 1937, on pages 74-75
  4. Entry for Suaeda in the Jepson Manual Online .
  5. Flora Aegyptiaco-Arabica pages XXXVIII, 69-71
  6. Schütze, P.; Freitag, H.; Weising, K. (2003). "An integrated molecular and morphological study of the subfamily Suaedoideae Ulbr. (Chenopodiaceae)". Plant Systematics and Evolution. 239 (3–4): 257–286. doi:10.1007/s00606-003-0013-2. ISSN   0378-2697. S2CID   20250636.
  7. Kapralov, M.V.; Akhani, H.; Voznesenskaya, E.V.; Edwards, G.; Franceschi, V.; Roalson, E.H. (2006). "Phylogenetic Relationships in the Salicornioideae / Suaedoideae / Salsoloideae s.l. (Chenopodiaceae) clade and a clarification of the phylogenetic position of Bienertia and Alexandra using multiple DNA sequence datasets". Systematic Botany. 31 (3): 571–585. doi:10.1600/036364406778388674. ISSN   0363-6445.
  8. Sage, R.F. (2016). "A portrait of the C4 photosynthetic family on the 50th anniversary of its discovery: species number, evolutionary lineages, and Hall of Fame". Journal of Experimental Botany. 67 (14): 4039–4056. doi: 10.1093/jxb/erw156 . ISSN   0022-0957. PMID   27053721. Open Access logo PLoS transparent.svg
  9. "Suaeda japonica". www.uniprot.org.