Leptochloa chinensis
(L.) Nees · speciesAt a glance
Sources8 archives
Databases and archives Leptochloa chinensis's data was compiled from.
WikipediaWikimedia Foundation6 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility972 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI6 eDNA detections↗
NCBIUS National Library of Medicinesequences↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
GoaTGenomes on a Tree · Sangergenome & karyotype↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
Leptochloa chinensis, commonly known as red sprangletop, Asian sprangletop, or Chinese sprangletop, is a species of grass in the family Poaceae. It is a serious weed of rice. It is native to regions of Africa, Asia, and Oceania. Places it is found include Japan, South Korea, Southeast Asia, Australia, Papua New Guinea, Eswatini, West Africa, Fiji and Samoa. It is known to be a pasture grass and is a livestock grazing feed grass specialty, but in some cases it is a common rice weed. The 1889 book 'The Useful Native Plants of Australia’ records that it is "an excellent pasture grass, much relished by stock ; it has tender panicles, and grows from two to three feet high. It is not endemic in Australia but is found in New South Wales and Queensland"
No narrative description available for this taxon yet.
Size & morphology2
Life cycle & reproduction3
Diet & foraging1
Habitat & environment9
Physiology & chemistry2
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 Leptochloa chinensis 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 Leptochloa chinensis 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 405×CCDB · ipcn-api-dl · CCDB · book-indian_vol2 · CCDB · eflora +2
2n 542×CCDB · book-ipcn73-74 · CCDB · book-indian_vol2
2n 361×CCDB · book-indian_vol2
n 204×CCDB · ipcn-api-dl · CCDB · book-ipcn75-78 · CCDB · Cave1962
n 91×CCDB · iapt
n 181×CCDB · book-ipcn75-78
Sequencing statusassembly quality — how far to trust these numbers
Assembly level tells you how finished the sequence is — from fragmented contigs, through scaffolds, up to a full chromosome-level assembly. BUSCO % estimates completeness: the share of genes expected to be present that were actually found. These describe the data quality, not the organism.
Record type972 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 institutions54 of 82 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Sanda, JP | 120 |
| Taipei, TW | 87 |
| Beijing, CN | 56 |
| Guangzhou, CN | 42 |
| Kochi, JP | 37 |
| Odawara, JP | 37 |
| Tsukuba, JP | 30 |
| Taipei, TW | 27 |
| TAIElocation not on record | 27 |
| Nanjing, CN | 24 |
| Tokushima, JP | 24 |
| Kunming, CN | 21 |
| Pretoria, ZA | 20 |
| Xiamen, CN | 15 |
| Changsha, CN | 14 |
| Kawasaki Shi Tama Ku, JP | 13 |
| Chengdu, CN | 12 |
| Seoul, KR | 11 |
| Sagamihara, JP | 11 |
| NSMKlocation not on record | 11 |
| Tomioka, JP | 10 |
| Kew, GB | 10 |
| Nagano City, JP | 7 |
| Palmerston, AU | 7 |
| Bern, CH | 7 |
| Yangling, CN | 7 |
| Guangzhou, CN | 7 |
| Osaka, JP | 6 |
| Yunnan Universitylocation not on record | 6 |
| Bando, JP | 6 |
| Chiba, JP | 6 |
| Taipei, TW | 6 |
| Wuhan, CN | 6 |
| Guilin, CN | 6 |
| Awka, NG | 5 |
| Durban, ZA | 5 |
| Hangzhou, CN | 5 |
| Nagasaki University - Fisherieslocation not on record | 5 |
| Brisbane, AU | 5 |
| Canberra, AU | 5 |
| KURAlocation not on record | 4 |
| Cambridge University Herbariumlocation not on record | 4 |
| Central China Normal Universitylocation not on record | 4 |
| Wuhan, CN | 4 |
| Toyama, JP | 4 |
| Institute for Agricultural Bacteriology and Fermentation Biologylocation not on record | 3 |
| Zhengzhou, CN | 3 |
| Museo Entomologico de Leonlocation not on record | 3 |
| Saint Louis, US | 3 |
| Bloomington, US | 3 |
| Museum Of Natural And Environmental History, Shizuokalocation not on record | 3 |
| Chengdu, CN | 2 |
| Shanghai, CN | 2 |
| Jishou Universitylocation not on record | 2 |
| Nishihara, JP | 2 |
| Xian, CN | 2 |
| Bronx, US | 2 |
| South China Normal Universitylocation not on record | 2 |
| Berlin, DE | 2 |
| Cambridge, US | 1 |
| San Isidro, AR | 1 |
| Peking Universitylocation not on record | 1 |
| Parthenon Tama History Museumlocation not on record | 1 |
| Ishikawa Museum of Natural Historylocation not on record | 1 |
| LDlocation not on record | 1 |
| National Museums of Kenyalocation not on record | 1 |
| LNBG$location not on record | 1 |
| Fujian Institute of Subtropical Botanylocation not on record | 1 |
| TAFORI-LSRClocation not on record | 1 |
| HUFDlocation not on record | 1 |
| MeiseBGlocation not on record | 1 |
| EL PASO, US | 1 |
| Zhejiang Museum of Natural Historylocation not on record | 1 |
| Hokkaido University Museumlocation not on record | 1 |
| Shanghai, CN | 1 |
| Auckland, NZ | 1 |
| Jiangxi College of Educationlocation not on record | 1 |
| Jiujiang Forestry Institutelocation not on record | 1 |
| Nagatoro-machi, Chichibu-gun, JP | 1 |
| West China Subalpine Botanical Gardenlocation not on record | 1 |
| University of Stellenboschlocation not on record | 1 |
| Honolulu, US | 1 |
Where the DNA of Leptochloa chinensis 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.