Phalaris (plant)

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Phalaris
Phalaris aquatica.jpg
Phalaris aquatica
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Poaceae
Subfamily: Pooideae
Supertribe: Poodae
Tribe: Poeae
Subtribe: Phalaridinae
Fr.
Genus: Phalaris
L.
Species

15-22 species (see text)

Phalaris is a genus of flowering plants in the grass family. Species of Phalaris are distributed across all continents except Antarctica. They can be found in a broad range of habitats from below sea level to thousands of feet above sea level and from wet marshy areas to dry places. P. arundinacea and P. aquatica are sometimes invasive species in wetlands.

Alkaloids

Some Phalaris species contain gramine, which, in sheep and to a lesser extent in cattle, is toxic and can cause brain damage, other organ damage, central nervous system damage, and death. [1] [2]

Phalaris arundinacea , Phalaris aquatica , and Phalaris brachystachys are known to contain the alkaloids DMT, 5-MeO-DMT, and 5-OH-DMT (bufotenin). Some research has been done into the variability of alkaloids in the Phalaris grasses. Strains with high levels of alkaloids are best avoided in locations with grazing cattle and sheep, due to potential toxicity. Such high-alkaloid strains include Phalaris aquatica AQ-1 and the species P. brachystachys. Seasonal and weather patterns also appear to affect alkaloid concentration, as most toxicity occurs in autumn and in times of drought. Regrowth after grazing or mowing also shows a considerable increase in alkaloids.

In June 2018, mobs of wild kangaroos were observed [3] suffering from "phalaris staggers" which causes head tremors, a loss of co-ordination and collapse. When phalaris is used to feed livestock, farmers can administer cobalt to their animals or spray it on their pastures to protect animals against the effects of phalaris. However, this treatment is not available to wild kangaroos and they suffer from poisoning due to the alkaloids. The staggers syndrome is more common in livestock in areas with limestone soils, which contain less cobalt than basalt soils.

Phalaris species known to contain alkaloids
Species
Total alkaloids (dried)
DMT
5-MeO-DMT
5-OH-DMT
Phalaris aquatica
0.0007-0.18% [4]
0.100% [5]
0.022% [5]
0.005% [5]
Phalaris arundinacea
0.0004-0.121% [4]
Phalaris brachystachys
Aerial parts up to 3%
x

None of the above alkaloids is said to have been found in P. californica, P. canariensis, P. minor and hybrids of P. arundinacea together with P. aquatica. [4]

Uses

Some species are used in dried flower arrangements. Phalaris canariensis is commonly used for birdseed.

Phalaris arundinacea is also being trialled as a potential bioenergy crop in Ireland. [6]

Species

Species include:

Related Research Articles

<span class="mw-page-title-main">Forage</span> Plant material eaten by grazing livestock

Forage is a plant material eaten by grazing livestock. Historically, the term forage has meant only plants eaten by the animals directly as pasture, crop residue, or immature cereal crops, but it is also used more loosely to include similar plants cut for fodder and carried to the animals, especially as hay or silage.

<span class="mw-page-title-main">Reed (plant)</span> Index of plants with the same common name

Reed is a common name for several tall, grass-like plants of wetlands.

Locoweed is a common name in North America for any plant that produces swainsonine, an alkaloid harmful to livestock. Worldwide, swainsonine is produced by a small number of species, most of them in three genera of the flowering plant family Fabaceae: Oxytropis and Astragalus in North America, and Swainsona in Australia. The term locoweed usually refers only to the North American species of Oxytropis and Astragalus, but this article includes the other species as well. Some references may incorrectly list Datura as locoweed.

<i>Phalaris arundinacea</i> Species of Plant

Phalaris arundinacea, or reed canary grass, is a tall, perennial bunchgrass that commonly forms extensive single-species stands along the margins of lakes and streams and in wet open areas, with a wide distribution in Europe, Asia, northern Africa and North America. Other common names for the plant include gardener's-garters and ribbon grass in English, alpiste roseau in French, Rohrglanzgras in German, kusa-yoshi in Japanese, caniço-malhado in Portuguese, and hierba cinta and pasto cinto in Spanish.

<span class="mw-page-title-main">Reed bed</span> Habitats formed by reed colonies in floodplains and estuaries

A reedbed or reed bed is a natural habitat found in floodplains, waterlogged depressions and estuaries. Reedbeds are part of a succession from young reeds colonising open water or wet ground through a gradation of increasingly dry ground. As reedbeds age, they build up a considerable litter layer that eventually rises above the water level and that ultimately provides opportunities in the form of new areas for larger terrestrial plants such as shrubs and trees to colonise.

<span class="mw-page-title-main">Canary grass</span> Species of grass

Canary grass is a plant, Phalaris canariensis, belonging to the family Poaceae. Originally a native of the Mediterranean region, it is now grown commercially in several parts of the world for birdseed.

<span class="mw-page-title-main">California coastal prairie</span> Plant community in California

California coastal prairie, also known as northern coastal grassland, is a grassland plant community of California and Oregon in the temperate grasslands, savannas, and shrublands biome. This ecosystem is found along the Pacific Coast, from as far south as Los Angeles in Southern California to southern Oregon. It typically stretches as far inland as 100 km, and occurs at altitudes of 350 m or lower.

<i>Phalaris aquatica</i> Species of plant

Phalaris aquatica, known by the common names bulbous canary-grass and Harding grass, is a species of grass in the genus Phalaris of the family Poaceae.

<i>Phalaris brachystachys</i> Species of grass

Phalaris brachystachys, the confused canary-grass or shortspike canarygrass, is an annual grass with growth habits and cultural requirements similar to Phalaris aquatica. It is native to the Mediterranean region. It grows most actively during the spring and fall, while resting during the heat of midsummer and the short cool days of winter. It also must be protected from heavy freezes.

<i>Epichloë coenophiala</i> Species of fungus

Epichloë coenophiala is a systemic and seed-transmissible endophyte of tall fescue, a grass endemic to Eurasia and North Africa, but widely naturalized in North America, Australia and New Zealand. The endophyte has been identified as the cause of the "fescue toxicosis" syndrome sometimes suffered by livestock that graze the infected grass. Possible symptoms include poor weight gain, elevated body temperature, reduced conception rates, agalactia, rough hair coat, fat necrosis, loss of switch and ear tips, and lameness or dry gangrene of the feet. Because of the resemblance to symptoms of ergotism in humans, the most likely agents responsible for fescue toxicosis are thought to be the ergot alkaloids, principally ergovaline produced by E. coenophiala.

<span class="mw-page-title-main">5-MeO-NMT</span> Chemical compound

5-MeO-NMT (5-methoxy-N-methyltryptamine) is an organic chemical compound, being the 5-methoxy analog of N-methyltryptamine (NMT). It was first isolated from Phalaris arundinacea. It has also been synthesized by Alexander Shulgin and reported in his book TiHKAL. Like other members of the N-methyltryptamine family of compounds, 5-MeO-NMT is believed to produce few or no psychedelic effects, although very little data exists about its pharmacological properties or toxicity.

<i>Lolium arundinaceum</i> Species of flowering plant

Lolium arundinaceum, tall fescue is a cool-season perennial C3 species of grass that is native to Europe. It occurs on woodland margins, in grassland and in coastal marshes. It is also an important forage grass with many cultivars that used in agriculture and is used as an ornamental grass in gardens, and sometimes as a phytoremediation plant.

<i>Phalaris angusta</i> Species of flowering plant

Phalaris angusta is a species of grass known by the common names timothy canarygrass and narrow canarygrass. It is native to the Americas, where it is most common in Chile and Argentina and can be found in northern South America and sections of the southwestern and southeastern United States. It is also known as an introduced species in Australia. It grows in grassland, prairie, marshland, and other habitat.

P. californica may refer to:

<span class="mw-page-title-main">Plant use of endophytic fungi in defense</span>

Plant use of endophytic fungi in defense occurs when endophytic fungi, which live symbiotically with the majority of plants by entering their cells, are utilized as an indirect defense against herbivores. In exchange for carbohydrate energy resources, the fungus provides benefits to the plant which can include increased water or nutrient uptake and protection from phytophagous insects, birds or mammals. Once associated, the fungi alter nutrient content of the plant and enhance or begin production of secondary metabolites. The change in chemical composition acts to deter herbivory by insects, grazing by ungulates and/or oviposition by adult insects. Endophyte-mediated defense can also be effective against pathogens and non-herbivory damage.

<i>Oxytropis sericea</i> Species of flowering plant

Oxytropis sericea is a species of flowering plant in the legume family known by the common names white locoweed, white point-vetch, whitepoint crazyweed, and silky crazyweed. It is native to western North America from Yukon and British Columbia south through the Pacific Northwest, the Rocky Mountains, and the Great Plains.

<i>Lolium rigidum</i> Species of grass

Lolium rigidum is a species of annual grass. Common names by which it is known include annual ryegrass, a name also given to Italian ryegrass, rigid ryegrass, stiff darnel, Swiss ryegrass and Wimmera ryegrass. It is a native of southern Europe, northern Africa, the Middle East and the Indian subcontinent and is grown as a forage crop, particularly in Australia, where it is also a serious and economically damaging crop weed.

References

  1. Cheeke, Peter R. (31 August 1989). Toxicants of Plant Origin - Google Book Search. CRC-Press. ISBN   9780849369902 . Retrieved 2008-04-20.
  2. phalaris pdf Archived 2015-11-24 at the Wayback Machine - AU Dept. of Agriculture and Food
  3. Kangaroos under the influence: Grass to blame for staggering death of 'drunken' kangaroos, Jo Printz and Mark Kearney, ABC News Online, 2018-06-21
  4. 1 2 3 "Lycaeum". Archived from the original on 2008-06-18. Retrieved 2007-06-28.
  5. 1 2 3 Erowid Phalaris FAQ
  6. Reed Canary Grass. Archived 2015-11-23 at the Wayback Machine Teagasc. 2007.