CACrown ArchivesThe cinema collection
Menu
Research dossier · Science & Nature

Rhododendron dauricum

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 revisionJun 8, 2026
Entity authorityQ1040366 ↗
Source-derived summary

Rhododendron dauricum is a species of flowering plant in the heath family Ericaceae native to forests and forest margins in Eastern Siberia, Mongolia, North China and Hokkaido, Japan. The Latin specific epithet dauricum means "from Siberia" – Transbaikal is also known as Dauria.

Description

Growing to 1.5 m (5 ft) tall and broad, it is a compact semi-evergreen shrub with purple flowers which open in late winter or early spring, before the dark green leaves appear.

Phytochemistry

R. dauricum contains monoterpenoids daurichromenic acid (DCA) and confluentin (decarboxylated DCA) as well as rhododaurichromenic acids A and B which are structurally related to cannabichromene.

Cultivation

R. dauricum is the basis of the PJM hybrid (Rhododendron dauricum × Rhododendron carolinianum).

The cultivar 'Mid-winter', with bright pink flowers, has gained the Royal Horticultural Society's Award of Garden Merit. It is hardy down to −20 °C (−4 °F), but like all rhododendrons requires a sheltered position in dappled shade and acid soil enriched with leaf mould.

Editorial summary

The public source identifies “Rhododendron dauricum” as species of plant. This brief keeps that definition visible, then builds a research path around Rhododendron, dauricum and species.

Editorial reviewA practical orientation to terminology and classification, particularly when read beside dated observations, specimens or technical literature. The current 161-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 value is orientation rather than verdict, with Rhododendron, dauricum and species providing the first useful test.
Editorial analysis

Why this record matters

A short description can identify a subject without explaining its stakes. For “Rhododendron dauricum”, the useful work is to connect “species of plant” to the records capable of establishing context and consequence.

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 Jun 8, 2026. The linked authority identifier is Q1040366. None of the 0 selected statements returned an explicit reference.

Critical limits

Scientific names, classifications and consensus can change while older terminology persists in catalogues and historical literature. 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 “Rhododendron dauricum”, its source revision and the description used here.
  2. Expand the search: follow Rhododendron dauricum primary sources, Rhododendron dauricum archive and Rhododendron 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 “Rhododendron dauricum”?
  2. Which observation, specimen, dataset or publication supports the account?
  3. Has classification or technical consensus changed since the cited source?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from “Rhododendron dauricum” 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.