Glebionis segetum
(L.) Fourr. · speciesAt a glance
Sources14 archives
Databases and archives Glebionis segetum's data was compiled from.
WikipediaWikimedia Foundation12 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility54 869 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI21 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics42 specimens↗
NCBIUS National Library of Medicinesequences↗
LOTUSNatural Products (Wikidata)compounds↗
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↗
PloiDBPloidy Databasegenome & karyotype
GLoBIGlobal Biotic Interactionsbiotic interactions↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
Glebionis segetum (syn. Chrysanthemum segetum) is a species of flowering plant in the family Asteraceae, probably native only to the eastern Mediterranean region but now naturalized in western and northern Europe as well as China and parts of North America.Altgervista Flora Italiana, Glebionis segetum (L.) Fourr. includes photos and European distribution mapBiota of North America Program 2014 county distribution mapFlora of China, Glebionis segetum (Linnaeus) Fourreau, 1869. 南茼蒿 nan tong hao Common names include corn marigold and corn daisy. Glebionis segetum has been hybridized with related Argyranthemum species to create cultivars of garden marguerites. Glebionis segetum is a herbaceous perennial plant growing to 80 cm tall, with spirally arranged, deeply lobed leaves 5–20 cm long. The flowers are bright yellow, produced in capitula (flowerheads) 3.5-5.5 cm in diameter, with a ring of ray florets and a centre of disc florets.Flora of North America, Glebionis segetum (Linnaeus) Fourreau, 1869. Corn marigold Glebionis segetum is widely naturalised outside of its native range, colonising western and central Europe with early human agriculture; it can be an invasive weed in some areas. However, it also was ranked very highly, in terms of nectar production, thus showing particular value in the role of nectar-provider for insects in a UK survey of meadow species' production of nectar sugar and pollen. Glebionis segetum was practically an exact equivalent in terms of how much nectar and pollen it produced in this study with the popular garden and meadow plant, cornflower Centaurea cyanus — the top producer of nectar sugar among the cultivated plants in the study (as opposed to those classified as weeds). Its long blooming period helps its ranking, as it does not have few flowers with very high nectar volume per flower — coupled with a brief blooming period that completely exhausts the plant, like some top-ranked plants in nectar sugar production surveys (e.g. Bull Thistle, Cirsium vulgare). The plant strongly attracts very small butterflies (such as the Pearl Crescent) and also small hoverflies such as Toxomerus marginatus. Japanese beetles will consume the petals. The corn marigold appears to have been a serious weed during the 13th century in Scotland, as suggested by a law of Alexander II which states that if a farmer allows so much as a single plant to produce seed in amongst his crops, then he will be fined a sheep.Dalrymple, Sir David (1776). Annals of Scotland. Pub. J. Murray. London. P. 338 -339. In Crete and Greece, the leaves and the tender shoots of a variety called neromantilida (νερομαντηλίδα) are eaten raw in salads or browned in hot olive oil by the locals.
No narrative description available for this taxon yet.
Size & morphology16
Life cycle & reproduction17
Diet & foraging2
Habitat & environment16
Physiology & chemistry3
Other traits5
Compounds documented for Glebionis segetum across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Compound class profile5 classes
Documented compounds32 total
| Compound | Class | Amount | Source |
|---|---|---|---|
| (+)-beta-Caryophyllene | present | LOTUS | |
| (2E,5R)-2-hexa-2,4-diynylidene-1,6-dioxaspiro[4.4]non-3-ene | present | LOTUS | |
| (2E,5R)-2-hexa-2,4-diynylidene-1,6-dioxaspiro[4.4]nona-3,7-diene | present | LOTUS | |
| (E)-5-methylsulfanyl-1-phenylpent-4-en-2-yn-1-one | present | LOTUS | |
| (Z)-1-(Methylthio)-5-phenyl-1-penten-3-yne | present | LOTUS | |
| 1-Phenyl-2,4-pentadiyn-1-one | present | LOTUS | |
| 3,4-Dihydro-2H-1-benzopyran-2-one | present | LOTUS | |
| 3-Hexa-2,4-diynylphenol | present | LOTUS | |
| 3-Penta-2,4-diynylphenol | present | LOTUS | |
| 4-Hydroxybenzoic acid | 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 Glebionis segetum 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 Glebionis segetum 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 1830×GoaT · DTOL Flowering Plants Estimates Kew · CCDB · ita-fl · CCDB · iapt +10
2n 361×CCDB · ipcn-api-dl
n 94×CCDB · iber-fl · CCDB · ipcn-api-dl · CCDB · book-ipcn72 +1
diploid1×GIFT · GIFT (floras)
diploid inferred1×PloiDB · genus-scale
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 type54 869 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 institutions60 of 111 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| LDlocation not on record | 249 |
| BIO-UNIPIlocation not on record | 230 |
| Uniwersytet Wrocławskilocation not on record | 208 |
| Olocation not on record | 182 |
| Oskarshamn, SE | 72 |
| CICYTEXlocation not on record | 72 |
| Berlin, DE | 68 |
| South Kensington, GB | 51 |
| College of the Atlantic, Museumlocation not on record | 40 |
| Görlitz, DE | 31 |
| Christchurch, NZ | 27 |
| SLU Artdatabankenlocation not on record | 26 |
| Trondheim, NO | 25 |
| Oulu, FI | 25 |
| KMNlocation not on record | 22 |
| Bergen, NO | 20 |
| Bern, CH | 18 |
| BClocation not on record | 17 |
| Kuopio, FI | 13 |
| BSBIlocation not on record | 10 |
| Wlocation not on record | 9 |
| UIBlocation not on record | 9 |
| San Diego, US | 7 |
| Museo Entomologico de Leonlocation not on record | 7 |
| Rishon Le Zion, IL | 7 |
| Zürich, CH | 7 |
| Conservatoire botanique national du Bassin parisienlocation not on record | 6 |
| Turku, FI | 6 |
| Davis, US | 6 |
| Riverside, US | 6 |
| Moscow State Universitylocation not on record | 6 |
| GBS RAN - Glavny Botanichesky Sad Rossijskoj Akademii Nauklocation not on record | 5 |
| Mlocation not on record | 5 |
| Badajoz, ES | 5 |
| MAlocation not on record | 5 |
| Nijmegen, NL | 5 |
| Rotorua, NZ | 5 |
| Provincia di Livornolocation not on record | 5 |
| Kensington, AU | 5 |
| 云南省思茅市民族传统医药研究所location not on record | 4 |
| Stockholm, SE | 4 |
| TROMlocation not on record | 4 |
| Mount Annan, AU | 3 |
| DBF-NHMDlocation not on record | 3 |
| Arcata, US | 3 |
| Auckland, NZ | 3 |
| Dresden, DE | 3 |
| Tromso University Museumlocation not on record | 3 |
| Naturalis Biodiversity Centerlocation not on record | 3 |
| Tilburg, NL | 3 |
| Göteborg, SE | 3 |
| Frankfurt am Main | 3 |
| Corvallis, US | 3 |
| National Museum Waleslocation not on record | 3 |
| Kew, GB | 3 |
| BFLlocation not on record | 3 |
| Denver, US | 3 |
| Helsinki, FI | 3 |
| Québec, CA | 3 |
| US | 2 |
| Wuzhou, CN | 2 |
| Museo civico di Storia naturale Giacomo Doria di Genova | Giacomo Doria Natural History Museum in Genoalocation not on record | 2 |
| Parkville, AU | 2 |
| Logan, US | 2 |
| TUR-Alocation not on record | 2 |
| NMBU:MINAlocation not on record | 2 |
| MeiseBGlocation not on record | 2 |
| Dekalb, US | 2 |
| Granada, ES | 2 |
| Zürich, CH | 2 |
| University of Patraslocation not on record | 1 |
| FLADlocation not on record | 1 |
| Karlsruhe, DE | 1 |
| Research Center in Biodiversity and Genetic Resourceslocation not on record | 1 |
| San Luis Obispo, US | 1 |
| LfUlocation not on record | 1 |
| San Diego Natural History Museum, Herbariumlocation not on record | 1 |
| Wellington, NZ | 1 |
| Museo Achille Folettolocation not on record | 1 |
| Saint Louis, US | 1 |
| Bourges, FR | 1 |
| San Diego Natural History Museumlocation not on record | 1 |
| Royal Ontario Museumlocation not on record | 1 |
| Tuscaloosa, US | 1 |
| Porrentruy, CH | 1 |
| València, ES | 1 |
| Naturkundliche Sammlung Urilocation not on record | 1 |
| PrivatHerblocation not on record | 1 |
| Royal Botanic Garden Edinburghlocation not on record | 1 |
| Lake Charles, US | 1 |
| University of New Hampshirelocation not on record | 1 |
| University of British Columbia, Herbariumlocation not on record | 1 |
| Porvoo, FI | 1 |
| Provo, US | 1 |
| Museum Ludovicae Ulricae, Zoology Institute of the University of Uppsalalocation not on record | 1 |
| Adelaide, AU | 1 |
| Paris, FR | 1 |
| Palmerston North, NZ | 1 |
| CIBIOlocation not on record | 1 |
| GJOlocation not on record | 1 |
| Bloomington, US | 1 |
| CJBGlocation not on record | 1 |
| H-Adlerlocation not on record | 1 |
| Canberra, AU | 1 |
| Santa Cruz, US | 1 |
| Severin-McDaniel Insect Collectionlocation not on record | 1 |
| Salzburg, AT | 1 |
| Institut und Museum fuer Geologie und Palaeontologielocation not on record | 1 |
| Hobart, AU | 1 |
| CASlocation not on record | 1 |
| Jyväskylä, FI | 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 Glebionis segetum 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.