Pseudognaphalium affine
(D.Don) Anderb. · speciesAt a glance
Sources11 archives
Databases and archives Pseudognaphalium affine's data was compiled from.
WikipediaWikimedia Foundation6 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility2 959 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI51 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics22 specimens↗
NCBIUS National Library of Medicinesequences↗
LOTUSNatural Products (Wikidata)compounds↗
NPASSNat. Product Activity & Species Sourcecompounds↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
PloiDBPloidy Databasegenome & karyotypeEvery layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
Pseudognaphalium affine is a species of flowering plant belonging to the genus Pseudognaphalium. The species is widely distributed in East Asia, Southeast Asia, South Asia, Transcaucasus and Anatolia. The plant is biennial, with stems 15–40 cm long, the surface of the plant is covered with fine woolly hair and the leaves are small and rounded. The flowers appear as small florets with petal around 2 mm long. In Chinese this plant is known as shǔqúcǎo (, lit. "mouse yeast grass") and used to make rice-flour pastry for the Qingming Festival; it is sometimes used to flavor the caozai guo consumed on Taiwan on Tomb Sweeping Day in the spring. In Japanese, it is known as hahakogusa or houkogousa ( or , lit. "mother and child grass"). G. affine is one of the herbs consumed during the Seven-Herbs Festival in the spring. In Vietnam, it is named rau khúc.
No narrative description available for this taxon yet.
Size & morphology11
Life cycle & reproduction5
Diet & foraging1
Habitat & environment10
Compounds documented for Pseudognaphalium affine across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Compound class profile5 classes
Documented compounds52 total
| Compound | Class | Amount | Source |
|---|---|---|---|
| (1S,3R,4R,5R)-3-(3-(3,4-Dihydroxyphenyl)Prop-2-Enoyloxy)-1,4,5-Trihydroxycyclohexane-1-Carboxylic Acid | present | NPASS | |
| (3R,3aR,4R,9aS,9bR)-3,9-dimethyl-4-[(E)-2-methylbut-2-enoyl]oxy-2,7-dioxo-3,3a,4,5,9a,9b-hexahydroazuleno[4,5-b]furan-6-carboxylic acid | present | NPASS | |
| (3S,4aR,6aR,6aR,6bS,8aS,11R,12S,12aR,14aR,14bR)-4,4,6a,6b,8a,11,12,14b-octamethyl-2,3,4a,5,6,6a,7,8,9,10,11,12,12a,13,14,14a-hexadecahydro-1H-picen-3-ol | present | NPASS | |
| (3S,4aR,6aR,6bR,8aR,11S,12S,12aS,14aS,14bR)-4,4,6a,6b,8a,11,12,14b-octamethyl-2,3,4a,5,6,7,8,9,10,11,12,12a,14,14a-tetradecahydro-1H-picen-3-ol | present | NPASS | |
| (4aR,6aR,6bS,8aR,11R,12S,12aS,14aS,14bS)-4,4,6a,6b,8a,11,12,14b-octamethyl-1,2,4a,5,6,7,8,9,10,11,12,12a,14,14a-tetradecahydropicen-3-one | present | NPASS | |
| 1-[2-Hydroxy-6-methoxy-4-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyphenyl]-3-(4-hydroxyphenyl)prop-2-en-1-one | present | LOTUS | |
| 2',4',4-Trihydroxy-6'-methoxychalcone | present | LOTUS | |
| 2',4,4',6'-Tetramethoxychalcone | present | LOTUS | |
| 2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3-[(2S,3S,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxychromen-4-one | present | LOTUS | |
| 2-(3,4-Dihydroxyphenyl)-5,7-dihydroxy-4-oxo-4H-1-benzopyran-3-yl 6-deoxyhexopyranoside | present | LOTUS |
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 Pseudognaphalium affine 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 Pseudognaphalium affine 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 1410×CCDB · new-zealand · CCDB · ipcn-api-dl · CCDB · book-indian_vol1 +4
2n 281×CCDB · book-ipcn65
n 75×CCDB · ipcn-api-dl · CCDB · book-ipcn66 · CCDB · book-ipcn67-71
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 959 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 institutions24 of 54 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Kochi, JP | 65 |
| Shinshu Universitylocation not on record | 59 |
| GMBAlocation not on record | 47 |
| Kagoshima, JP | 38 |
| CASlocation not on record | 36 |
| National Institute of Biological Resourceslocation not on record | 36 |
| NSMKlocation not on record | 30 |
| Fukushima Universitylocation not on record | 25 |
| Nagano City, JP | 23 |
| KR | 23 |
| Sendai, JP | 17 |
| Edinburgh, GB | 13 |
| Sugadaira Research Station, Mountain Science Center, University of Tsukubalocation not on record | 13 |
| SIHUlocation not on record | 13 |
| JP | 12 |
| Central China Normal Universitylocation not on record | 12 |
| Herbarium of the Department of Botany, University of Tokyolocation not on record | 11 |
| J.F.Oberlin Universitylocation not on record | 10 |
| KIRMlocation not on record | 9 |
| Iwate Prefectural Museumlocation not on record | 8 |
| Kyoto Universitylocation not on record | 8 |
| Elocation not on record | 6 |
| Omachi Alpine Museumlocation not on record | 6 |
| Mie Prefectural Museumlocation not on record | 5 |
| Tomioka, JP | 5 |
| Kew, GB | 3 |
| Canberra, AU | 3 |
| Awka, NG | 3 |
| Ishikawa Museum of Natural Historylocation not on record | 3 |
| Beijing, CN | 3 |
| Herbarium of South China Botanical Gardenlocation not on record | 3 |
| Sanda, JP | 3 |
| Otaru, JP | 3 |
| Wuhan, CN | 2 |
| KNAMlocation not on record | 2 |
| Taipei, TW | 2 |
| Korea National Arboretumlocation not on record | 2 |
| Sagamihara, JP | 2 |
| Phoenix, US | 1 |
| Chicago, US | 1 |
| Chinese Academy of Sciences, Xinjiang Institute of Ecology and Geography, Herbariumlocation not on record | 1 |
| BClocation not on record | 1 |
| Cambridge, US | 1 |
| Jishou Universitylocation not on record | 1 |
| Durham, US | 1 |
| Obihiro Centennial City Museumlocation not on record | 1 |
| Hazara Universitylocation not on record | 1 |
| Stockholm, SE | 1 |
| SSNHlocation not on record | 1 |
| The Cattle Museumlocation not on record | 1 |
| Fort Worth, US | 1 |
| GNWPlocation not on record | 1 |
| Berlin, DE | 1 |
| University of Stellenboschlocation not on record | 1 |
Where the DNA of Pseudognaphalium affine 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.