Panicum amarum
Elliott · speciesAt a glance
Sources11 archives
Databases and archives Panicum amarum's data was compiled from.
WikipediaWikimedia Foundation3 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility1 123 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI2 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics2 specimens↗
NCBIUS National Library of Medicinesequences↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
WikidataWikimedia Foundationstructured facts↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
Panicum amarum is a species of grass known by the common name bitter panicum. It is native to North America, where it is found in coastal regions along the East Coast and Gulf Coast of the United States and into northeastern Mexico. It also occurs in The Bahamas and in Cuba.Panicum amarum. Grass Manual Treatment. This perennial grass grows from a thick rhizome. It has stems up to 2.5 meters tall and 1 centimeter thick. It may grow erect or bent over. The thick, firm leaves are up to half a meter long. They are bluish in color.Panicum amarum. USDA NRCS Plant Fact Sheet. The inflorescence is a narrowed panicle up to 80 centimeters long by 17 wide. Some seed is produced but most reproduction is vegetative, with new plants sprouting from tillers and the rhizome.Panicum amarum. USDA NRCS Plant Guide. This grass is commonly used for dune stabilization projects.Hester, M. W., et al. (1994). Grazing of Panicum amarum in a Louisiana barrier island dune plant community: Management implications for dune restoration projects. Ocean & Coastal Management 23(3) 213-24. It is used to prevent erosion.Learning about bitter panicum. LSU Coastal Roots. The aboveground plant parts act as a windbreak, preventing the sand from being blown away, and the large root system stabilizes the sand in place. It can also be used in revegetation projects at other areas, such as mine spoils. Specifically, var. amarulum is valuable for these projects. The roots grow six feet deep. The cultivar 'Atlantic' is available.Panicum amarum var. amarulum. USDA NRCS Plant Fact Sheet. A cultivar of P. amarum called 'Dewey Blue' is also used for ornamental purposes.'Dewey Blue'. Missouri Botanical Garden.
No narrative description available for this taxon yet.
Size & morphology2
Life cycle & reproduction25
Diet & foraging1
Habitat & environment25
Physiology & chemistry20
Uses & economy15
Other traits6
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 Panicum amarum 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 Panicum amarum 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 362×CCDB · book-fedorov · CCDB · book-atlas-flowering-plants
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 type1 123 records
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 institutions38 of 53 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Philadelphia, US | 37 |
| Bronx, US | 31 |
| Jena Microbial Resource Collectionlocation not on record | 30 |
| Tampa, US | 26 |
| Norfolk, US | 25 |
| US | 22 |
| New Haven, US | 19 |
| Williamsburg, US | 17 |
| University of Stellenboschlocation not on record | 13 |
| Austin, US | 12 |
| Millersville, US | 9 |
| Wuzhou, CN | 9 |
| Chongqing Museumlocation not on record | 8 |
| Durango, MX | 8 |
| Miami, US | 7 |
| Chapel Hill, US | 6 |
| Bangkok, TH | 6 |
| Mérida, MX | 6 |
| Mississippi State, US | 5 |
| Saint Louis, US | 4 |
| Columbia, US | 4 |
| Clemson, US | 4 |
| GAlocation not on record | 4 |
| Fort Worth, US | 4 |
| Tapachula, MX | 3 |
| Mexico City, MX | 3 |
| University of North Carolina at Pembrokelocation not on record | 3 |
| Tall Timbers Research Stationlocation not on record | 3 |
| College Park, US | 3 |
| Valdosta State Universitylocation not on record | 2 |
| Dover, US | 2 |
| Staten Island, US | 2 |
| New Brunswick, US | 2 |
| Dekalb, US | 2 |
| Knoxville, US | 1 |
| Wlocation not on record | 1 |
| Auckland, NZ | 1 |
| Lubbock, US | 1 |
| Torreón, MX | 1 |
| XALlocation not on record | 1 |
| Ann Arbor, US | 1 |
| Little Rock, US | 1 |
| Emporia, US | 1 |
| US | 1 |
| James F. Matthews Center for Biodiversity Studieslocation not on record | 1 |
| BAYLUlocation not on record | 1 |
| University of Southern Mississippilocation not on record | 1 |
| Lord Fairfax Community Collegelocation not on record | 1 |
| Stephenville, US | 1 |
| North Carolina Museum of Natural Scienceslocation not on record | 1 |
| Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record | 1 |
| EL PASO, US | 1 |
| Denver, US | 1 |
Where the DNA of Panicum amarum 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?
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.