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Euthamia leptocephala

species of plant

Specimen drawers, botanical folios and brass scientific instruments under study light
Science and natureInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionOct 28, 2025
Entity authorityQ15597711
Source-derived summary

Euthamia leptocephala, (commonly known as the narrowhead goldentop, Mississippi Valley goldentop, or bushy goldentop) is a North American species of plants in the family Asteraceae. It is native to the south-central United States, in the lower Mississippi Valley and the Coastal Plain of the Gulf of Mexico, from Texas to west-central Georgia and north as far as southern Illinois.

Description

Euthamia leptocephala is a perennial herb or subshrub up to 100 cm (40 inches) tall. Leaves are alternate, simple, long and narrow, up to 8 cm (3.2 inches) long. One plant can produce many small, yellow flower heads flat-topped arrays. Each head has 7-14 ray florets surrounding 3-6 disc florets.

Galls

This species is host to the following insect induced galls:

Asteromyia euthamiae Gagné, 1968 forms black spots on leaf blades

Epiblema desertana (Zeller, 1875) causes stem swelling.

Editorial summary

“Euthamia leptocephala” enters the record as species of plant. Crown Archives preserves that source wording while asking what Euthamia, leptocephala and species can confirm, complicate or overturn.

Editorial reviewA sound reference starting point where classification, measurement and the date of the underlying evidence remain visible. The current lead gives the account dated anchors—1968, 1875—that can be checked directly. The selected authority fields contribute no independent date. Its strongest next move is a source search built around Euthamia, leptocephala and species.
Editorial analysis

Why this record matters

“Euthamia leptocephala” is worth following because a concise public description often conceals a longer documentary argument. Here, Euthamia, leptocephala and species provides the most credible route into that argument.

Evidence profile

The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Oct 28, 2025. The linked authority identifier is Q15597711. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1968 and 1875.

Critical limits

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.

Best used for
  • Current terminology
  • Classification context
  • Finding cited technical literature
Verify next

Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.

Three-step research path

  1. Establish the record: confirm the title “Euthamia leptocephala”, its source revision and the description used here.
  2. Expand the search: follow Euthamia leptocephala primary sources, Euthamia leptocephala archive and Euthamia research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Euthamia leptocephala”?
  2. Which observation, specimen, dataset or publication supports the account?
  3. Has classification or technical consensus changed since the cited source?
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Source & attribution

This entry incorporates text from Euthamia leptocephala” 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.