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Piper excelsum

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 revisionMar 29, 2026
Entity authorityQ21306444
Source-derived summary

Piper excelsum (formerly known as Macropiper excelsum) of the pepper family (Piperaceae) and commonly known as kawakawa, is a small tree of which the subspecies P. excelsum subsp. excelsum is endemic to New Zealand; the subspecies P. e. subsp. psittacorum is found on Lord Howe Island, Norfolk Island and the Kermadec Islands.

Description

Kawakawa is found throughout the North Island, and as far south as Ōkārito (43.20 °S) on the West Coast, and Banks Peninsula (43.5 °S) on the east coast of the South Island. The tree grows to 6 metres (20 feet).

The leaves are often covered with holes caused by the caterpillar of the kawakawa looper moth (Cleora scriptaria). The images depict the variety majus which has larger and more glossy leaves than P. excelsum.

Leaves

Kawakawa leaves are about 5–10 cm long by 6–12 cm wide; they are opposite to each other, broadly rounded with a short drawn-out tip and are heart-shaped at their bases. The leaves are deep green in colour if growing in the forest, but may be yellowish-green in more open situations.

Editorial summary

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

Editorial reviewA practical orientation to terminology and classification, particularly when read beside dated observations, specimens or technical literature. The current 178-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. Its strongest next move is a source search built around Piper, excelsum and species.
Editorial analysis

Why this record matters

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

Evidence profile

Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Mar 29, 2026. The linked authority identifier is Q21306444. None of the 0 selected statements returned an explicit reference.

Critical limits

Current terminology should not be projected backward without checking the classification used when the underlying evidence was created. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. 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 “Piper excelsum”, its source revision and the description used here.
  2. Expand the search: follow Piper excelsum primary sources, Piper excelsum archive and Piper 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 “Piper excelsum”?
  2. Is the terminology current, historical or disputed?
  3. Has classification or technical consensus changed since the cited source?
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Source & attribution

This entry incorporates text from Piper excelsum” 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.