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Cornus × arnoldiana Rehder

Arnold's dogwood

Cornaceae · Missouri, Massachusetts +2

A hybrid: C. obliqua × C. racemosa, the parents Kew's World Checklist states for it (WCVP, RBG Kew).

No habitat climate
Photographs not checked iNaturalist was skipped (not asked) when this page was built. Not asked, or not answered, is not "none": nothing here claims there is none. Why the site says it this way.
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Summary

Cornus × arnoldiana, the Arnold dogwood, is a hybrid dogwood native to eastern North America. It is reported from Ontario, Missouri, Ohio, Pennsylvania, and Massachusetts. It is a member of the dogwood genus Cornus and the family Cornaceae.

Quoted from Wikipedia, "Cornus × arnoldiana", CC BY-SA 4.0.

About the genus · Cornus

Cornus is a genus of about 30–60 species of woody plants in the family Cornaceae, commonly known as dogwoods or cornels, which can generally be distinguished by their blossoms, berries, and distinctive bark. Most are deciduous trees or shrubs, but a few species are nearly herbaceous perennial subshrubs, and some species are evergreen. Several species have small heads of inconspicuous flowers surrounded by an involucre of large, typically white petal-like bracts, while others have more open clusters of petal-bearing flowers. More on Wikipedia ›

Quoted from Wikipedia, "Cornus", 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 1 distinct land cell of the climate grid holds an in-range record placed to within 10 km; three are needed for an envelope. 2 of the 3 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.
Openly licensed records inside the range, framed on where they fall.
NativeMissouri, Massachusetts, Ohio, Pennsylvania · 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).
Kew's description“shrub” · “temperate” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 3 georeferenced records inside the native range; the map shows only the 1 openly licensed one, which alone would put the marker 238 km away. 4 records outside the WCVP native range not used. Under a dozen records behind the map. No climate across the range is derived for this species. 2 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.

Photographs

Not checked. iNaturalist was skipped (not asked) when this page was built; GBIF's observation records with coordinates hold none. Not a statement that none exist.

Other Cornus 36 in the reference

Cornus alba Cornus alba White dogwood Photo: CC BY, Dmitriy BochkovCornus alternifolia Cornus alternifolia Alternateleaf dogwood Photo: CC BY, Jamie HunterCornus amomum Cornus amomum Silky dogwood Photo: CC BY, Sandy WolkenbergCornus asperifolia Cornus asperifolia Eastern roughleaf dogwood Photo: CC BY, carterCornus bretschneideri Cornus bretschneideri Bretschneider's Dogwood Photo: CC BY, Jane CharlenCornus canadensis Cornus canadensis Creeping dogwood Photo: CC BY, Arthur WhitingCornus capitata Cornus capitata Bentham's dogwood Photo: CC0, author not statedCornus chinensis Cornus chinensis Cornaceae Photo: CC BY-SA, Krzysztof GolikCornus controversa Cornus controversa Wedding cake tree Photo: CC BY, WATANABE Hitoshi 渡辺仁Cornus disciflora Cornus disciflora Cornaceae Photo: CC BY, Neptalí Ramírez MarcialCornus drummondii Cornus drummondii Rough-leaf dogwood Photo: CC BY, Jeff HansenCornus florida Cornus florida Flowering dogwood Photo: CC0, author not stated all 37 ›

Names & registers

GBIFPOWOIPNIWFOWikidataWikipediaiNaturalist

The record

Family
Cornaceae
Described by
Rehder
Native to
Missouri, Massachusetts, Ohio +1
Wild records
3 in range · 1 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 2026-10-21
GBIF species record gbif.species answeredasked 2026-10-21
GBIF synonyms gbif.synonyms answeredasked 2026-10-21
GBIF common names gbif.vernacular answeredasked 2026-10-21names fetched 2026-10-21
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 2026-10-21only 1 distinct land cell of the climate grid holds an in-range record placed to within 10 km; three are needed for an envelope
Wikidata wikidata answeredasked 2026-10-21
Wikipedia wikipedia answeredasked 2026-10-21
iNaturalist photographs, wild inat.photos.wild nothing to reportasked 2026-10-22from iNaturalist's open data of 2026-09-27: research-grade observations with an open-licence photograph, the 24 whose photographs iNaturalist received last (the open data holds no votes); filled 2026-10-22
iNaturalist photographs, cultivated inat.photos.cultivated not asked
GBIF media gbif.media nothing to reportasked 2026-10-21
Wikimedia Commons commons nothing to reportasked 2026-10-21
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 3 datasets via GBIF.org; each carries its own licence.

Cultifolio

Opening your plants…