Equisetum pratense
Ehrh. · speciesAt a glance
Sources14 archives
Databases and archives Equisetum pratense's data was compiled from.
WikipediaWikimedia Foundation13 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility69 522 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI15 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics22 specimens↗
NCBIUS National Library of Medicinesequences↗
LOTUSNatural Products (Wikidata)compounds↗
NPASSNat. Product Activity & Species Sourcecompounds↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
giftgenome & karyotype
GoaTGenomes on a Tree · Sangergenome & karyotype↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
Equisetum pratense, commonly known as meadow horsetail, shade horsetail or shady horsetail, is a widespread horsetail (Equisetophyta) fern. Shade horsetail can be commonly found in forests with tall trees or very thick foliage that can provide shade and tends to grow closer and thicker around streams, ponds and rivers. The specific epithet pratense is Latin, meaning pasture or meadow dwelling.
No narrative description available for this taxon yet.
Size & morphology5
Life cycle & reproduction7
Diet & foraging1
Habitat & environment8
Physiology & chemistry7
Other traits1
Compounds documented for Equisetum pratense across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Compound class profile5 classes
Documented compounds34 total
| Compound | Class | Amount | Source |
|---|---|---|---|
| (3R,3'R,13-cis)-beta,beta-Carotene-3,3'-diol | present | LOTUS | |
| 2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3-((2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl)oxychromen-4-one | present | LOTUS | |
| 5-O-Caffeoylshikimic acid | present | LOTUS | |
| 6-[(E)-2-(3,4-dihydroxyphenyl)ethenyl]-4-hydroxy-3-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxypyran-2-one | present | LOTUS | |
| Adonixanthin | present | LOTUS | |
| all-trans-Neoxanthin | present | LOTUS | |
| alpha-Carotene | present | LOTUS | |
| Apigenin 4'-O-beta-D-glucopyranoside | present | LOTUS | |
| Astragalin | present | LOTUS | |
| Astragalin 7-glucoside | 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 Equisetum pratense 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 Equisetum pratense 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 2166×GoaT · DTOL Flowering Plants Estimates Kew · CCDB · nw-europe-fl · CCDB · book-LoveLove1977 +1
diploid1×GIFT · GIFT (floras)
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 type69 522 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.
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Holding institutions108 of 222 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Uniwersytet Wrocławskilocation not on record | 1 980 |
| Helsinki, FI | 622 |
| Moscow State Universitylocation not on record | 460 |
| LDlocation not on record | 357 |
| Olocation not on record | 282 |
| St. Paul, US | 191 |
| Institute of Plant and Animal Ecology Ural Branch of the Russian Academy of Scienceslocation not on record | 174 |
| Oulu, FI | 157 |
| Salzburg, AT | 136 |
| Trondheim, NO | 131 |
| Garðabær, IS | 131 |
| Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record | 117 |
| Zürich, CH | 115 |
| TROMlocation not on record | 111 |
| Turku, FI | 104 |
| Irkutsk State Universitylocation not on record | 97 |
| Bergen, NO | 88 |
| Université Lavallocation not on record | 87 |
| Tartu, EE | 79 |
| Oskarshamn, SE | 78 |
| Adam Mickiewicz University in Poznańlocation not on record | 69 |
| Burlington, US | 69 |
| SLU Artdatabankenlocation not on record | 62 |
| KMNlocation not on record | 61 |
| University of Alberta Museumslocation not on record | 59 |
| Madison, US | 55 |
| Philadelphia, US | 52 |
| Vancouver, CA | 52 |
| Ann Arbor, US | 51 |
| Tallinn, EE | 49 |
| Beijing, CN | 49 |
| Zürich, CH | 47 |
| Udmurt State Universitylocation not on record | 46 |
| Green Bay, US | 46 |
| Québec, CA | 45 |
| TUR-Alocation not on record | 43 |
| 43 | |
| Uppsala, SE | 43 |
| Chicago, US | 42 |
| Tyumen State Universitylocation not on record | 40 |
| IFR-DNFlocation not on record | 36 |
| Victoria, CA | 36 |
| DBF-NHMDlocation not on record | 36 |
| Instytut Ochrony Przyrody Polskiej Akademii Nauklocation not on record | 36 |
| GBS RAN - Glavny Botanichesky Sad Rossijskoj Akademii Nauklocation not on record | 36 |
| Chapel Hill, US | 36 |
| Jyväskylä, FI | 31 |
| Philadelphia, US | 30 |
| WINlocation not on record | 30 |
| University of Calgarylocation not on record | 26 |
| Dresden, DE | 26 |
| Kuopio, FI | 25 |
| Toronto, CA | 25 |
| Staatliches Museum fuer Naturkunde Karlsruhe (State Museum of Natural History)location not on record | 24 |
| Ernst-Moritz-Arndt-Universitat Greifswaldlocation not on record | 24 |
| Minia, EG | 23 |
| Bronx, US | 22 |
| Chongqing Museumlocation not on record | 22 |
| Provincia di Livornolocation not on record | 22 |
| Institute of Biology Ufa Scientific Centre of Russian Academy of Scienceslocation not on record | 20 |
| Görlitz, DE | 20 |
| Tampere, FI | 19 |
| WTUlocation not on record | 19 |
| UNINE:NEUlocation not on record | 19 |
| Brookings, US | 18 |
| Tula State Universitylocation not on record | 18 |
| SZUlocation not on record | 16 |
| BRNUlocation not on record | 16 |
| University of Silesia in Katowicelocation not on record | 15 |
| BFLlocation not on record | 15 |
| Yukon Universitylocation not on record | 15 |
| Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowielocation not on record | 14 |
| Chelyabinsk State Universitylocation not on record | 14 |
| Pullman, US | 14 |
| GZUlocation not on record | 14 |
| Wuzhou, CN | 14 |
| McWane Science Centerlocation not on record | 13 |
| University of Stellenboschlocation not on record | 12 |
| Provo, US | 12 |
| Porvoo, FI | 12 |
| University of New Hampshirelocation not on record | 11 |
| Museum Ludovicae Ulricae, Zoology Institute of the University of Uppsalalocation not on record | 10 |
| Tula State Lev Tolstoy Pedagogical Universitylocation not on record | 10 |
| Saint John, CA | 10 |
| Rovaniemi, FI | 9 |
| Regensburgische Botanische Gesellschaftlocation not on record | 9 |
| Tsukuba, JP | 9 |
| Bern, CH | 8 |
| Fort Worth, US | 8 |
| Stockholm, SE | 8 |
| BSBIlocation not on record | 8 |
| Montréal, CA | 8 |
| Uniwersytet Śląski w Katowicachlocation not on record | 8 |
| Wlocation not on record | 7 |
| IPDNlocation not on record | 7 |
| Forssa, FI | 7 |
| South Kensington, GB | 7 |
| Morgantown, US | 7 |
| Tampa, US | 7 |
| PRClocation not on record | 7 |
| Servico de Microbiologia e Imunologialocation not on record | 6 |
| Dhaka, BD | 6 |
| Urumqi, CN | 6 |
| Acadia Universitylocation not on record | 6 |
| GJOlocation not on record | 6 |
| Uniwersytet Warszawskilocation not on record | 6 |
| Auckland, NZ | 5 |
| University of Bayreuthlocation not on record | 5 |
| Dekalb, US | 5 |
| BClocation not on record | 5 |
| Bloomington, US | 5 |
| Whitehorse, CA | 5 |
| IWEP FEB RASlocation not on record | 4 |
| Xining, CN | 4 |
| University of Winnipeglocation not on record | 4 |
| San Jose State University, Museum of Birds and Mammalslocation not on record | 4 |
| University of Lethbridgelocation not on record | 4 |
| MAlocation not on record | 4 |
| Lord Fairfax Community Collegelocation not on record | 4 |
| UBT-Kaullocation not on record | 4 |
| Institut und Museum fuer Geologie und Palaeontologielocation not on record | 4 |
| Davenport, US | 3 |
| Spearfish, US | 3 |
| Durham, US | 3 |
| Kandalaksha State Nature Reservelocation not on record | 3 |
| Missoula, US | 3 |
| Chadron, US | 3 |
| Inner Mongolia Universitylocation not on record | 3 |
| Portland, US | 3 |
| New Haven, US | 3 |
| Musee des Dinosaures d'Esperaza (Aude)location not on record | 3 |
| Berlin, DE | 3 |
| Finnish Museum of Natural History, Botanical Museumlocation not on record | 3 |
| UFPRlocation not on record | 3 |
| Cincinnati, US | 3 |
| DULlocation not on record | 3 |
| Northeastern Forestry Universitylocation not on record | 3 |
| Bozeman, US | 3 |
| NMBU:MINAlocation not on record | 3 |
| US | 3 |
| Trois-Rivières, CA | 3 |
| Yangling, CN | 2 |
| Royal Botanical Gardenslocation not on record | 2 |
| Mlocation not on record | 2 |
| Kunming, CN | 2 |
| University of Wisconsinlocation not on record | 2 |
| Salamanca, ES | 2 |
| Columbia, US | 2 |
| Flagstaff, US | 2 |
| Moscow, US | 2 |
| Wellington, NZ | 2 |
| MeiseBGlocation not on record | 2 |
| Kyoto Universitylocation not on record | 2 |
| Sion, CH | 2 |
| Conservatoire botanique national du Bassin parisienlocation not on record | 2 |
| Taipei, TW | 2 |
| Urumqi, CN | 2 |
| The State Museum-Preserve "The Kulikovo pole"location not on record | 2 |
| Tromso University Museumlocation not on record | 2 |
| NMWlocation not on record | 1 |
| Samara National Research Universitylocation not on record | 1 |
| Nanjing, CN | 1 |
| Phoenix, US | 1 |
| US | 1 |
| DOI/NPS, Colonial National Historical Parklocation not on record | 1 |
| PTHlocation not on record | 1 |
| Xiamen, CN | 1 |
| University of Birminghamlocation not on record | 1 |
| Logan, US | 1 |
| Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record | 1 |
| BIO-UNIPIlocation not on record | 1 |
| University of Guelph, OAC Herbariumlocation not on record | 1 |
| Museum of the Rockieslocation not on record | 1 |
| Saint Louis, US | 1 |
| Paris, FR | 1 |
| Fullerton, US | 1 |
| Tilburg, NL | 1 |
| McGill University, Herbariumlocation not on record | 1 |
| Hokkaido University Museumlocation not on record | 1 |
| GB | 1 |
| Decorah, US | 1 |
| Waverly, US | 1 |
| Anchorage, US | 1 |
| Jurica-Suchy Nature Museumlocation not on record | 1 |
| LfUlocation not on record | 1 |
| Minot State Universitylocation not on record | 1 |
| Montréal, CA | 1 |
| Caldwell, US | 1 |
| BioFokuslocation not on record | 1 |
| Tobolsk Complex Scientific Station of the Ural Branch of the Russian Academy of Scienceslocation not on record | 1 |
| 东北师范大学自然博物馆location not on record | 1 |
| Bangkok, TH | 1 |
| University of Salzburglocation not on record | 1 |
| Keene State Universitylocation not on record | 1 |
| US | 1 |
| CJBGlocation not on record | 1 |
| Tuscaloosa, US | 1 |
| Siberian forest experimental stationlocation not on record | 1 |
| Royal Botanic Garden Edinburghlocation not on record | 1 |
| Kew, GB | 1 |
| Yugra State University Biological Collectionlocation not on record | 1 |
| Institute of the biological problems of the North FEB RASlocation not on record | 1 |
| San Angelo, US | 1 |
| The Tula Region State Institution of Culture "Tula Museum Association"location not on record | 1 |
| València, ES | 1 |
| Norfolk, US | 1 |
| Smithsonian Institutionlocation not on record | 1 |
| Durango, US | 1 |
| Nanchong, CN | 1 |
| Jiangxi College of Educationlocation not on record | 1 |
| WNNUlocation not on record | 1 |
| Peking Universitylocation not on record | 1 |
| Shanghai Chenshan Botanical Gardenlocation not on record | 1 |
| Fribourg, CH | 1 |
| Museu Nacional, Universidade Federal do Rio de Janeirolocation not on record | 1 |
| Lubbock, US | 1 |
| USFS/BHSClocation not on record | 1 |
| Edinburgh, GB | 1 |
| Meguro Parasitological Museumlocation not on record | 1 |
| nbflocation not on record | 1 |
| Mississippi State, US | 1 |
| Herbarium of the Department of Botany, University of Tokyolocation not on record | 1 |
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Where the DNA of Equisetum pratense 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.