Lachnagrostis filiformis

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Cladus: Commelinids
Ordo: Poales

Familia: Poaceae
Subfamilia: Pooideae
Tribus: Aveneae
Subtribus: Agrostidinae
Genus: Lachnagrostis
Species: Lachnagrostis filiformis
Name

Lachnagrostis filiformis (G.Forst.) Trin., Fund. Agrost. 128 (1820)
References

Trinius, C.B. von. 1820. Fundamenta Agrostographiae 128, pl. 10.

Lachnagrostis filiformis (syn. Agrostis avenacea) is a species of grass known by the common names Pacific bent grass, New Zealand wind grass, fairy grass,[2][3] or blown-grass.[2] It is native to Australia, New Zealand, and other Pacific Islands including New Guinea and Easter Island. While it is found in a wide variety of habitats, it seems particularly invasive in areas with damp soils, such as areas near bodies of water.[4] It has been introduced to southern Africa,[5] the United Kingdom,[6] Taiwan, the southern United States and Mexico.[7]

Pacific bent grass is a tufted perennial grass growing up to 65 centimeters tall. The leaf blades are flat and about 8-25 centimeters long and 2-3 millimeters wide.[4] The stems, which are round or polygonal, are hollow.[6] The inflorescence, which appears in June and July, may be from 7-30 centimeters long. It consists of a panicle of wispy strands, each with several tiny, fuzzy spikelets at the end. The spikelets are two or three millimeters long.[8]

In Australia it is a fire hazard,[3][9][10] and interferes with trains.[11][12]

Lachnagrostis filiformis is known elsewhere as an introduced species and sometimes a noxious weed. It is particularly invasive in California, where it is a weed of sensitive vernal pool ecosystems around San Diego.[13]
See also

Invasive species

References

"Lachnagrostis filiformis". Plants of the World Online. Royal Botanic Gardens Kews. 2022. Retrieved 8 June 2022.
"Common Blown-Grass". Victorian Resources Online. Archived from the original on 2013-04-24. Retrieved 2012-03-28.
"Fairy Grass". City of Ballarat. Archived from the original on 2012-03-19.
Roberts, Philip D.; Parker, Chris (December 10, 2019). "Agrostis avenacea (Pacific bent grass)". CABI Invasive Species Compendium. Retrieved April 22, 2021.
"Agrostis avenacea J.F.Gmel". www.gbif.org. Retrieved 2021-04-22.
"Agrostis avenacea : Blown-grass | NBN Atlas". species.nbnatlas.org. Retrieved 2021-04-22.
Jung, Ming-Jer; Wu, Tian-Shung; Kuoh, Chang-Sheng (September 30, 2005). "Notes on Newly Recorded Grasses in Taiwan". ResearchGate. Retrieved April 22, 2021.
"Agrostis avenacea". ucjeps.berkeley.edu. Retrieved 2021-04-22.
"Opinions Split Over Fairy Grass Solutions". The Wimmera Mail-Times. 20 Jan 2012.
"Controlling Lachnagrostis filiformis (Fairy grass) on dry lake beds in western Victoria, Australia". Archived from the original on 2012-07-08.
"Trekking millipedes sideline trains". The Age. 29 March 2012.
"Ballarat line infrastructure". Archived from the original on 2013-04-12.
California Invasive Plant Council