Halocnemum

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Halocnemum
Halocnemum strobilaceum.jpg
Halocnemum strobilaceum
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Amaranthaceae
Subfamily: Salicornioideae
Genus: Halocnemum
M.Bieb. (1819)
Species [1]

3; see text

Synonyms [1]
  • HalimocnemumLindem. (1880)
  • SarcathriaRaf. (1837), nom. superfl.

Halocnemum is a genus of halophytic shrubs in the family Amaranthaceae. The plants are fleshy and apparently articulated with characteristic globular or short-cylindrical lateral branches, and reduced leaves and flowers. There are three or two species, occurring from Southern Europe and North Africa to Asia.

Contents

Description

The species of Halocnemum are subshrubs or low shrubs up to 1.5 m, much branched from base. Young stems are succulent, glabrous, apparently articulated, with characteristic globular to short-cylindrical lateral branches. The opposite leaves are fleshy, glabrous, sessile, joined at base and surrounding the stem, their blades reduced to small scales. [2]

The inflorescences are terminal or numerous opposite lateral, short-cylindrical or orbicular spikes. Cymes of (two to) three flowers are sitting in the axils of shield-like, opposite bracts. The mostly bisexual flowers are somewhat immersed in the inflorescence axis. The perianth consists of three subequal, membranous tepals that are loosely connate at base. There is one stamen exserting the flower and an ovoid ovary with a thick style and two stigmas. [2]

In fruit the perianth remains unchanged. The fruit is obovoid and free. The vertical seed is orange to red-brown, with slightly papillose seed coat. The seed contains the curved embryo and copious perisperm (feeding tissue). [2]

Distribution and habitat

The distribution area of Halocnemum covers Southern Europe, the Mediterranean region, North Africa, Eastern Europe, Southwest Asia, Middle Asia to China (Xinjiang, Gansu). [2]

The plants grow in coastal salt marshes or wet inland salt flats, sabkhas, on salty clay, in salt steppes or dried river beds, up to 1200 m above sea level. [2]

Systematics

Halocnemum cruciatum Halocnemum strobilaceum 03.jpg
Halocnemum cruciatum
twigs of Halocnemum cruciatum with globular lateral branches Halocnemum strobilaceum 07.jpg
twigs of Halocnemum cruciatum with globular lateral branches

The genus Halocnemum was first published in 1819 by Friedrich August Marschall von Bieberstein, [3] at that time comprising two species, Halocnemum strobilaceum and Halocnemum caspicum (the latter is now a synonym of Halostachys belangeriana ). Halocnemum strobilaceum was selected as the type species. [4] During the 19th century further species were added, later these were grouped into other genera or treated just as synonyms of Halocnemum strobilaceum. For many years the genus Halocnemum has been regarded as monotypic. In 2008, the new species Halocnemum yurdakulolii was discovered, [5] although some treat it as a synonym of Halocnemum cruciatum in 2012. [6]

Phylogenetic research confirmed, that Halocnemum is closely related to the genus Halostachys . [7]

Species

According to Bacchetta et al. [6] (2012) and Biondi et al. [8] (2013), Halocnemum comprises two species. Plants of the World Online (2024) also accepts H. yurdakulolii. [1]

Uses

Halocnemum strobilaceum has small economic value as a grazing plant for camels and sheep. [5] Plants are very good prime colonizers and are often used to rehabilitate pastures on highly saline soils. [10] They are used as source of potash and as fuel by nomadic tribes. [5]

Related Research Articles

<span class="mw-page-title-main">Amaranthaceae</span> Family of flowering plants

Amaranthaceae is a family of flowering plants commonly known as the amaranth family, in reference to its type genus Amaranthus. It includes the former goosefoot family Chenopodiaceae and contains about 165 genera and 2,040 species, making it the most species-rich lineage within its parent order, Caryophyllales.

<i>Salicornia</i> Genus of flowering plants in the family Amaranthaceae

Salicornia is a genus of succulent, halophytic flowering plants in the family Amaranthaceae that grow in salt marshes, on beaches, and among mangroves. Salicornia species are native to North America, Europe, central Asia, and southern Africa. Common names for the genus include glasswort, pickleweed, picklegrass, and marsh samphire; these common names are also used for some species not in Salicornia. To French speakers in Atlantic Canada, they are known colloquially as titines de souris. The main European species is often eaten, called marsh samphire in Britain, and the main North American species is occasionally sold in grocery stores or appears on restaurant menus as sea beans, samphire greens or sea asparagus.

Sarcocornia is a formerly recognized genus of flowering plants in the amaranth family, Amaranthaceae. Species are known commonly as samphires, glassworts, or saltworts. Molecular phylogenetic studies have shown that when separated from Salicornia, the genus is paraphyletic, since Salicornia is embedded within it, and Sarcocornia has now been merged into a more broadly circumscribed Salicornia. When separated from Salicornia, the genus has a cosmopolitan distribution, and is most diverse in the Cape Floristic Region of South Africa.

<span class="mw-page-title-main">Salicornioideae</span> Subfamily of flowering plants

The Salicornioideae are a subfamily of the flowering plant family Amaranthaceae. Important characters are succulent, often articulated stems, strongly reduced leaves, and flowers aggregated in thick, dense spike-shaped thyrses. These halophytic plants are distributed worldwide. Many are edible

<i>Halogeton</i> Genus of flowering plants

Halogeton is a plant genus of the family Amaranthaceae. The genus name, Halogeton, derives from the Greek words for "salt" and for "neighbor."

<i>Salsola</i> Genus of plants

Salsola is a genus of the subfamily Salsoloideae in the family Amaranthaceae. The genus sensu stricto is distributed in central and southwestern Asia, North Africa, and the Mediterranean. A common name of various members of this genus and related genera is saltwort, for their salt tolerance. The genus name Salsola is from the Latin salsus, meaning "salty".

<i>Halothamnus</i> Genus of flowering plants

Halothamnus is a genus in the subfamily Salsoloideae of the family Amaranthaceae. The scientific name means saltbush, from the Greek ἅλς (hals) "salt" and θαμνος (thamnos) "bush". This refers either to salty habitats or to the accumulation of salt in the plants. The genus is distributed from Southwest and Central Asia to the Arabian peninsula and East Africa.

<i>Halothamnus glaucus</i> Species of flowering plant

Halothamnus glaucus is a species of the plant genus Halothamnus, that belongs to the subfamily Salsoloideae of the family Amaranthaceae,. It occurs in Western and Central Asia.

<i>Bassia</i> Genus of flowering plants

Bassia is a genus of flowering plants in the family Amaranthaceae. They are distributed in the western Mediterranean to eastern Asia. Some occur outside their native ranges as introduced species.

<i>Halothamnus lancifolius</i> Species of plant in the family Annonaceae

Halothamnus lancifolius is a species of the plant genus Halothamnus, that belongs to the subfamily Salsoloideae within the family Amaranthaceae,. It occurs in Southwest Asia.

<span class="mw-page-title-main">Betoideae</span> Subfamily of flowering plants

The Betoideae are a small subfamily of the flowering plant amaranth family, Amaranthaceae sensu lato. Commonly known members include beet, sugar beet, chard, and mangelwurzel, which all are cultivars of Beta vulgaris.

<span class="mw-page-title-main">Corispermoideae</span> Subfamily of flowering plants

The Corispermoideae are a subfamily of the Amaranthaceae, formerly in family Chenopodiaceae.

<i>Halostachys</i> Genus of flowering plants

Halostachys is a genus of flowering plants in the plant family Amaranthaceae, containing a single species, Halostachys caspica. The plants are small to medium halophytic shrubs with apparently jointed fleshy stems and scale-like leaves. They are native to western and central Asia and northern China.

<i>Kalidium</i> Genus of flowering plants

Kalidium is a genus of flowering plants in the plant family Amaranthaceae. The species are shrubby halophytes distributed in Southeast Europe, Southwest Asia and Central Asia to China.

<i>Halimione</i> Genus of flowering plants

Halimione is a plant genus from the subfamily Chenopodioideae of the family Amaranthaceae. It is a sister genus of Atriplex and is included in that genus by Plants of the World Online.

<i>Halocnemum strobilaceum</i> Species of plant

Halocnemum strobilaceum is a species of flowering plant in the subfamily Salicornioideae of the family Amaranthaceae. It is native to coastal areas of the Mediterranean Sea and the Red Sea and parts of the Middle East and central Asia, where it grows in coastal and inland salt marshes, alkali flats, and other habitats with saline soils.

<i>Allenrolfea</i> Genus of flowering plants

Allenrolfea is a genus of shrubs in the family Amaranthaceae. The genus was named for the English botanist Robert Allen Rolfe. There are three species, ranging from North America to South America.

Arthrocnemum was a genus of shrubs in the family Amaranthaceae. Two or three species were included in the genus. They are halophytes with fleshy, apparently articulated plant stems and reduced leaves and flowers.

<i>Halopeplis</i> Genus of flowering plants

Halopeplis is a genus in the family Amaranthaceae. The plants are halophytes with not articulated stems and fleshy stem-clasping leaves. There are three species, occurring from the Mediterranean basin and North Africa to Southwest Asia and Central Asia.

<i>Microcnemum</i> Genus of flowering plants

Microcnemum is a genus in the plant family Amaranthaceae, containing a single species, Microcnemum coralloides. It is a dwarf annual halophyte with fleshy, apparently jointed stems and reduced leaves and flowers. The two subspecies show a disjunct distribution in Spain and Western Asia.

References

  1. 1 2 3 Halocnemum M.Bieb. Plants of the World Online . Retrieved 5 April 2024.
  2. 1 2 3 4 5 Hedge, I.C.: Halocnemum. In: Rechinger, K.H. et al. (eds.): Flora Iranica, Vol. 172, Chenopodiaceae, Akad. Druck, Graz 1997, p. 126–128. ISBN   3-201-00728-5.
  3. Friedrich August Marschall von Bieberstein: Flora Taurico-Caucasica 3: p. 3 First publication scanned at BHL
  4. "Halocnemum". Tropicos . Missouri Botanical Garden . Retrieved 8 August 2016.
  5. 1 2 3 4 Yaprak, A.E., & Kadereit, G.: A new species of Halocnemum M.Bieb. (Amaranthaceae) from southern Turkey. In: Botanical Journal of the Linnean Society 158, 2008, p. 716–721. doi : 10.1111/j.1095-8339.2008.00910.x
  6. 1 2 3 Bacchetta, G., Brullo, C., Brullo, S., Guarino, R., & Sciandrello, S.: Studi tassonomici sulle popolazioni italiane di Halocnemum strobilaceum (Amaranthaceae). In: Bacchetta, G., Brullo, C., Brullo, S., Guarino, R., & Sciandrello, S.: Flora vascolare d'Italia: studi biosistematici, taxa endemici e loci classici. Roma, 2012. p. 29–30. ISBN   978-88-85915-06-0.
  7. Kadereit, G., Mucina, L. & Freitag, H.: Phylogeny of Salicornioideae (Chenopodiaceae): diversification, biogeography, and evolutionary trends in leaf and flower morphology, In: Taxon, Volume 55 (3), 2006, p. 617–642.
  8. 1 2 3 Biondi, E., Casavecchia, S., Estrelles, E., & Soriano, P.: Halocnemum M. Bieb. vegetation in the Mediterranean Basin. In: Plant Biosystems 147(3), 2013, p. 536–547 doi : 10.1080/11263504.2013.832709
  9. Halocnemum yurdakulolii Yaprak. Plants of the World Online . Retrieved 5 April 2024.
  10. Entry at Pl@antUse, according to Gintzburger et al.: Rangelands in Uzbekistan, 2003. Accessed 8 August 2016.