Cenchrus alopecuroides
(L.) Thunb. · speciesAt a glance
Sources5 archives
Databases and archives Cenchrus alopecuroides's data was compiled from.
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Cenchrus alopecuroides, l'Herbe aux écouvillons, est une espèce de plantes monocotylédones de la famille des Poaceae, sous-famille des Panicoideae, originaire d'Asie et d'Australasie. Ce sont des plantes herbacées vivaces cespiteuses, aux tiges (chaumes) dressées de 60 à 100 cm de long. L'inflorescence est une panicule spiciforme. Cette espèce, connue aussi sous le nom de Pennisetum alopecuroides, est parfois cultivée comme plante ornementale. - Étymologie - Le nom générique « cenchrus » dérive d'un terme grec ancien, κεγχρος (kengchros) qui désignait Panicum miliaceum ou toute plante similaire à petits grains. L'épithète spécifique « alopecuroides » est formée du nom de genre Alopecurus et du suffixe -oides, du grec εἶδος (eîdos) signifiant « aspect, apparence » en référence à la similitude de l'inflorescence de cette espèce avec celle du genre précité.
No narrative description available for this taxon yet.
Size & morphology18
Life cycle & reproduction8
Diet & foraging1
Habitat & environment12
Physiology & chemistry1
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 Cenchrus alopecuroides has left across the world's sequence archives.
At a glance
The complete instruction manual Cenchrus alopecuroides 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.
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 185×CCDB · book-ipcn67-71 · CCDB · book-indian_vol2 · CCDB · eflora +2
2n 142×CCDB · book-indian_vol2 · CCDB · book-fedorov
2n 221×CCDB · ipcn-api-dl
2n 361×CCDB · book-indian_vol2
n 183×CCDB · iapt · CCDB · ipcn-api-dl
diploid 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 type2 143 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 institutions2 of 6 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Kagoshima, JP | 22 |
| University of Stellenboschlocation not on record | 6 |
| Iwate Prefectural Museumlocation not on record | 3 |
| Otaru, JP | 1 |
| Wlocation not on record | 1 |
| Adam Mickiewicz University in Poznańlocation not on record | 1 |
Where the DNA of Cenchrus alopecuroides 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.