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Research dossier · Science & Nature

Lactuca raddeana

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 revisionFeb 26, 2025
Entity authorityQ15595340 ↗
Source-derived summary

Lactuca raddeana is a species of wild lettuce native to Vietnam, eastern China, the Korean peninsula, the Russian Far East, Sakhalin, the Kuril Islands, and Japan. A biennial or perennial, growing to 2 m, it has a very wide range of variation in leaf shape, across a spectrum from undivided leaves to pinnatipartite leaves. It is edible but bitter.

Varieties

A variety is currently accepted:

Lactuca raddeana var. aogashimaensis (Kitam.) Katsuy.

Editorial summary

Begin with the source’s own compact description: “Lactuca raddeana” is species of plant. The dossier treats that line as a proposition to test through Lactuca, raddeana and species, not as a finished interpretation.

Editorial reviewA practical orientation to terminology and classification, particularly when read beside dated observations, specimens or technical literature. The current 71-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. For this dossier, Lactuca, raddeana and species is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “species of plant” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

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 Feb 26, 2025. The linked authority identifier is Q15595340. None of the 0 selected statements returned an explicit reference.

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 “Lactuca raddeana”, its source revision and the description used here.
  2. Expand the search: follow Lactuca raddeana primary sources, Lactuca raddeana archive and Lactuca 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 “Lactuca raddeana”?
  2. Has classification or technical consensus changed since the cited source?
  3. Is the terminology current, historical or disputed?
Subject index

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Source & attribution

This entry incorporates text from “Lactuca raddeana” 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.