Lachnagrostis filiformis
(G.Forst.) Trin. · speciesAt a glance
Sources12 archives
Databases and archives Lachnagrostis filiformis's data was compiled from.
WikipediaWikimedia Foundation6 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility23 913 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI8 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics12 specimens↗
NCBIUS National Library of Medicinesequences↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
GoaTGenomes on a Tree · Sangergenome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
GLoBIGlobal Biotic Interactionsbiotic interactions↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
Lachnagrostis filiformis (syn. Agrostis avenacea) is a species of grass known by the common names Pacific bent grass, New Zealand wind grass, fairy grass, or blown-grass. 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. It has been introduced to southern Africa, the United Kingdom, Taiwan, the southern United States and Mexico. 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. The stems, which are round or polygonal, are hollow. 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. In Australia it is a fire hazard, and interferes with trains. 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.California Invasive Plant Council
No narrative description available for this taxon yet.
Size & morphology24
Life cycle & reproduction11
Diet & foraging1
Habitat & environment13
Physiology & chemistry3
A DNA barcode is a short, standardised stretch of genes that works like a fingerprint — enough to tell one species from another. Below is the molecular trace Lachnagrostis filiformis has left across the world's sequence archives.
At a glance
★ the standard DNA barcode for this group — the short region actually read to tell this species apart. The rest are extra genes sequenced along the way.
The complete instruction manual Lachnagrostis filiformis carries — its genome. We read it from three angles — how big it is, how the DNA is packed into chromosomes, and how completely it has been sequenced — and explain how to read each value as you go.
Genome sizehow big the whole instruction manual is
Measured in base pairs (bp) — the individual letters of DNA (human ≈ 3.2 Gb, a bacterium a few million). The chart places this genome on a logarithmic scale — each step to the right is ten times bigger — among reference organisms. Across species a bigger genome loosely tracks with larger cells, slower growth and lower-energy lifestyles (powered flight favours small genomes) — yet it does not imply more genes or a more advanced organism (the long-standing C-value paradox).
Chromosomes & ploidyhow the DNA is packaged
2n is the full chromosome count in a normal body cell; n is a gamete (egg or sperm), which carries half. Ploidy is how many complete chromosome sets each cell holds — 2× (diploid) is typical for animals, while higher levels (polyploidy) are common in plants. Click any value below to see the underlying records and sources.
2n 568×GoaT · Kew Plant DNA C-values Database · CCDB · new-zealand · CCDB · nw-europe-fl +4
n 281×CCDB · ipcn-api-dl
octoploid1×GoaT · Kew Plant DNA C-values Database
polyploid inferred1×PloiDB · genus-scale
How far back this lineage goes — and how we know. Everything here is measured in Ma, short for “mega-annum”: millions of years ago. The chart reads left to right like a calendar of the Earth, from the deep past on the left to today at the right edgetop to bottom like a core drilled through the Earth, from the deep past at the top down to today at the bottom.
At a glance
When this lineage existed
How to read this: the coloured strip along the bottomdown the left is the geological calendar — the standard epochs (Pliocene, Pleistocene…) every museum uses, shown so you can see which chapter of Earth's history this lineage lived in. This lineage is a young one, so the strip is zoomed in to epochs — the finer subdivisions inside a period. The orange marker is the DNA clock: DNA accumulates mutations at a roughly steady rate, so comparing this species' DNA with its relatives estimates when the lineage split off — independently of any fossil.
Record type23 913 records
Origin
Range
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Museum / Voucheredphysical evidence
Backed by a physical specimen — a herbarium sheet, sample or voucher held in a collection. “Vouchered” means supported by material evidence, not just an observation.
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Holding institutions32 of 51 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Museo Entomologico de Leonlocation not on record | 525 |
| Adelaide, AU | 498 |
| Canberra, AU | 374 |
| Mount Annan, AU | 363 |
| Brisbane, AU | 218 |
| Hobart, AU | 200 |
| Auckland, NZ | 153 |
| Kensington, AU | 148 |
| Christchurch, NZ | 71 |
| Armidale, AU | 53 |
| Wellington, NZ | 47 |
| Palmerston, AU | 30 |
| NSW Dept of Planning, Industry and Environmentlocation not on record | 29 |
| BISHlocation not on record | 15 |
| South Kensington, GB | 14 |
| Saint Louis, US | 14 |
| Rotorua, NZ | 13 |
| San Isidro, AR | 12 |
| Parkville, AU | 12 |
| NSW Office of Environment and Heritagelocation not on record | 9 |
| QVMAGlocation not on record | 9 |
| La Trobe Universitylocation not on record | 8 |
| University of Stellenboschlocation not on record | 7 |
| Honolulu, US | 7 |
| John T. Waterhouse Herbariumlocation not on record | 7 |
| Logan, US | 6 |
| Wuzhou, CN | 6 |
| Palmerston North, NZ | 5 |
| Bern, CH | 5 |
| Kew, GB | 4 |
| Wollongong, AU | 4 |
| Smithfield, AU | 4 |
| Stockholm, SE | 4 |
| Batemans Bay, AU | 4 |
| Ciudad Autónoma de Buenos Aires, AR | 3 |
| Dresden, DE | 2 |
| CASlocation not on record | 2 |
| Córdoba, AR | 2 |
| Irvine, US | 2 |
| MeiseBGlocation not on record | 1 |
| Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record | 1 |
| Corrientes, AR | 1 |
| South African National Biodiversity Institutelocation not on record | 1 |
| MAlocation not on record | 1 |
| Chongqing Museumlocation not on record | 1 |
| San Diego Natural History Museum, Herbariumlocation not on record | 1 |
| DOI/NPS, Greenbelt Parklocation not on record | 1 |
| State Herbarium of South Australialocation not on record | 1 |
| LDlocation not on record | 1 |
| BGPAlocation not on record | 1 |
| Bronx, US | 1 |
Where the DNA of Lachnagrostis filiformis was picked up in samples of water, soil or air — nobody saw the organism, only its DNA left behind. A trace is a clue that the species was near, not a confirmed sighting.
Signal
Where its DNA was found
How strong is each trace?
Modelled climatemodelled
How to read this: each dot is one detection of this species' DNA in an environmental sample. The confidence meter weighs how many independent studies and places back up the signal — one detection in one study is a hint; many across several studies is solid. Records dated before 2008 (when eDNA methods began) are treated as likely mislabeled and left off the map.