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Philadelphus delavayi; photograph Daderot, CC0, via Wikimedia Commons CC0Daderot, CC0, via Wikimedia Commons

Philadelphus delavayi L.Henry

Hydrangeaceae · China South-Central, Tibet +1

No habitat climate
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Philadelphus delavayi, photograph Daderot, CC0, via Wikimedia CommonsPhiladelphus delavayi, photograph peganum from Henfield, England, CC BY-SA 2.0, via Wikimedia CommonsPhiladelphus delavayi, photograph peganum from Henfield, England, CC BY-SA 2.0, via Wikimedia Commons 4 photographs ›

Summary

Philadelphus delavayi is a deciduous shrub in the genus Philadelphus, native to China, Tibet, and Upper Burma. It was discovered by Pierre Jean Marie Delavay in 1887. It has an upright growth habit, to a height of 3 metres, with arching branches and ovate, tapered, sometimes toothed, dark green leaves up to 10 cm or more long. It bears racemes of 5-9 cup shaped, single, very fragrant creamy-white flowers, 2.5 cm across.

Quoted from Wikipedia, "Philadelphus delavayi", CC BY-SA 4.0.

About the genus · Philadelphus

Philadelphus (mock-orange) is a genus of about 60 species of shrubs from 3–20 ft tall, native to North America, Central America, Asia and (locally) in southeast Europe.

Quoted from Wikipedia, "Philadelphus", CC BY-SA 4.0.

Cultivation

Nothing derived: no habitat climate for this species.

Climate across the habitat

No habitat climate can be derived: Only 2 distinct land cells of the climate grid hold an in-range record placed to within 10 km; three are needed for an envelope. 108 of the 110 in-range records are placed to worse than 10 km, or to no stated accuracy and fewer than three decimals or by something other than a person's observation, and cannot place a climate cell, though they count for the map and its marker.

Natural habitat

Native range as published by WCVP; the marker is where the records are densest and decides nothing.
Openly licensed records inside the range, framed on where they fall.
NativeChina South-Central, Tibet, Myanmar · introduced: Great Britain · regions are the level-3 units of the World Geographical Scheme for Recording Plant Distributions, as Kew's World Checklist records ranges, some under historical names such as Yugoslavia or Czechoslovakia (how).
Map marker27.667, 98.724 · in the densest population, 62 records (56% of those in range)
Kew's description“shrub” · “temperate” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 110 georeferenced records inside the native range; the map shows only the 79 openly licensed ones, which alone would put the marker 1 km away. 4 records outside the WCVP native range not used. No climate across the range is derived for this species. 108 in-range records are placed to worse than 10 km, or with no stated accuracy (admitted only as a person's observation to three decimals), and stay on the map but off the climate.
How this section is made
The map marker: the openly licensed record nearest the middle of the densest 1° population of the 110 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Philadelphus delavayi, photograph 1did not loadPhiladelphus delavayi, photograph 2did not loadPhiladelphus delavayi, photograph 3did not load

Photographs: Daderot, CC0, via Wikimedia Commons; peganum from Henfield, England, CC BY-SA 2.0, via Wikimedia Commons (2).

Other Philadelphus 22 in the reference

Philadelphus brachybotrys Philadelphus brachybotrys Hydrangeaceae Photo: CC BY-SA, Krzysztof Golik Philadelphus calvescens Hydrangeaceae Philadelphus coronarius Philadelphus coronarius Mock-orange Photo: CC BY, Martin Scheuch Philadelphus henryi Hydrangeaceae Philadelphus hirsutus Philadelphus hirsutus Cliff mock orange Photo: CC BY, Alaina Krakowiak Philadelphus incanus Hairy mock orange Philadelphus inodorus Philadelphus inodorus Scentless mock orange Photo: CC0, author not stated Philadelphus kansuensis Hydrangeaceae Philadelphus lewisii Philadelphus lewisii Lewis' mock-orange Photo: CC BY, David AndersonPhiladelphus mexicanus Philadelphus mexicanus Mexican mock orange Photo: CC BY, Neptalí Ramírez MarcialPhiladelphus microphyllus Philadelphus microphyllus Littleleaf mock orange Photo: CC BY, Trevor Van LoonPhiladelphus pekinensis Philadelphus pekinensis Beijing mock orange Photo: CC BY, Jane Charlen all 23 ›

Names & registers

Also known as Philadelphus delavayi f. cruciflorus; Philadelphus delavayi f. melanocalyx; Philadelphus delavayi var. melanocalyx. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidataWikipedia

The record

Family
Hydrangeaceae
Described by
L.Henry
Native to
China South-Central, Tibet, Myanmar
Wild records
110 in range · 79 open

Every figure here is derived from public data by a stated rule and names its source; nothing about this species is written for its page by a person or by AI, apart from the marked, credited quotations. How →

Where this page came from built 2026-10-22
GBIF species record gbif.species answeredasked 2026-10-22
GBIF synonyms gbif.synonyms answeredasked 2026-10-22
GBIF common names gbif.vernacular answeredasked 2026-10-22names fetched 2026-10-22
WCVP native range wcvp.distribution answeredas of 2026-06-04
GBIF occurrence records gbif.occurrences answeredas of 2026-10-21GBIF occurrence download https://doi.org/10.15468/dl.hbdw64, of 2026-10-21; 2 records within 1 km of a botanic garden, herbarium or zoo left out (2 at a botanic garden or arboretum; Wikidata's list)
Habitat climate climate nothing to reportasked 2026-10-22only 2 distinct land cells of the climate grid hold an in-range record placed to within 10 km; three are needed for an envelope
Wikidata wikidata answeredasked 2026-10-22
Wikipedia wikipedia answeredasked 2026-10-22
iNaturalist taxon inat.taxon not asked
iNaturalist photographs, wild inat.photos.wild not asked
iNaturalist photographs, cultivated inat.photos.cultivated not asked
GBIF media gbif.media nothing to reportasked 2026-10-22
Wikimedia Commons commons answeredasked 2026-10-22
OpenAlex papers openalex not askednot yet asked for this reference; a later fill takes the papers from OpenAlex's snapshot

Every source is recorded as having answered, reported nothing, refused, failed, not been asked, or answered twice where one answer is taken (“not taken: two items answered”), and, for a source asked when this page was built, when: the figures are as the source held them that day; a source read from a file (Kew's World Checklist, a GBIF download) says "as of" the file's day instead; a row carried from an earlier build of the page names that build instead. Only “nothing to report” is ever shown as an absence. Records came from 21 datasets via GBIF.org; each carries its own licence.

Cultifolio

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