Cotula mexicana
species of plant

Cotula mexicana, also known as Mexican brassbuttons, is a plant species in the sunflower family. It is widespread in South America and also found in central Mexico (Puebla, México State, Hidalgo) and parts of the United States (California, Idaho).
“Cotula mexicana” enters the record as species of plant. Crown Archives preserves that source wording while asking what Cotula, mexicana and species can confirm, complicate or overturn.
Why this record matters
“Cotula mexicana” is worth following because a concise public description often conceals a longer documentary argument. Here, Cotula, mexicana and species provides the most credible route into that argument.
Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Dec 27, 2025. The linked authority identifier is Q15552054. None of the 0 selected statements returned an explicit reference.
A general summary may omit uncertainty, sample limits or methodological disagreement that is explicit in the technical record. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Check terminology, classification and the date of the cited evidence. Scientific names and technical consensus can change while older records retain historical value.
- Current terminology
- Classification context
- Finding cited technical literature
Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.
Three-step research path
- Establish the record: confirm the title “Cotula mexicana”, its source revision and the description used here.
- Expand the search: follow Cotula mexicana primary sources, Cotula mexicana archive and Cotula research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Cotula mexicana”?
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- Has classification or technical consensus changed since the cited source?
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This entry incorporates text from “Cotula mexicana” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.