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Clematis viticaulis; photograph (c) Alaina Krakowiak, some rights reserved (CC BY) CC BY(c) Alaina Krakowiak, some rights reserved (CC BY) · observed growing wild · 2024-05-07

Clematis viticaulis Steele

Millboro leather-flower; Grape clematis; Grape leather-flower

Ranunculaceae · Virginia · listed by its genus as a temperate garden plant

No habitat climate
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Clematis viticaulis, photograph (c) Alaina Krakowiak, some rights reserved (CC BY)Clematis viticaulis, photograph (c) Alaina Krakowiak, some rights reserved (CC BY)Clematis viticaulis, photograph (c) Alaina Krakowiak, some rights reserved (CC BY)Clematis viticaulis, photograph (c) Alaina Krakowiak, some rights reserved (CC BY)Clematis viticaulis, photograph (c) Alaina Krakowiak, some rights reserved (CC BY)Clematis viticaulis, photograph (c) Alaina Krakowiak, some rights reserved (CC BY) 8 photographs ›

Summary

Clematis viticaulis is a species of perennial flowering plant in the buttercup family, known by the common names Millboro leatherflower and grape clematis.

Quoted from Wikipedia, "Clematis viticaulis", CC BY-SA 4.0.

About the genus · Clematis

Clematis is a genus of about 380 species within the buttercup family, Ranunculaceae. Their garden hybrids and cultivars have been popular among gardeners, beginning with Clematis 'Jackmanii', a garden staple since 1862. More cultivars are being produced constantly, mainly of Chinese and Japanese origin.

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

Cultivation

Grouped as a temperate garden plant, listed under the genus Clematis in the archetype table, and Kew describes it as “perennial”, “temperate”.

Nothing derived: no habitat climate for this species.
How this section is made

Each card states this species' habitat figures with their sources, and what two fixed rules read from them; nothing here says what the plant does, wants or tolerates. The rules · the terms.

Group. Listed under the genus Clematis in the archetype table, and Kew describes it as “perennial”, “temperate”. A group is taken only where Kew's description of the species agrees with the table's listing. The table gives no figure and no prose; the cold floor is the habitat's alone.

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. 29 of the 31 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.
NativeVirginia · 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 marker38.009, -79.739 · in the densest population, 31 records (100% of those in range)
Kew's description“perennial” · “temperate” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 31 georeferenced records inside the native range; the map shows only the 10 openly licensed ones, which alone would put the marker 8 km away. No climate across the range is derived for this species. 29 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 31 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Clematis viticaulis, photograph 1did not loadClematis viticaulis, photograph 2did not loadClematis viticaulis, photograph 3did not loadClematis viticaulis, photograph 4did not loadClematis viticaulis, photograph 5did not loadClematis viticaulis, photograph 6did not load

Photographs: (c) Alaina Krakowiak, some rights reserved (CC BY) (6).

Other Clematis 112 in the reference

Clematis addisonii Clematis addisonii Addison Brown's clematis Photo: CC0, author not statedClematis aethusifolia Clematis aethusifolia Parsley-leaf clematis Photo: CC BY, zhangshenClematis afoliata Clematis afoliata Rush-stem clematis Photo: CC BY, Rock McLaren Clematis akebioides Ranunculaceae Clematis akoensis Clematis akoensis Ranunculaceae Photo: CC0, 葉子Clematis albicoma Clematis albicoma White-haired leather-flower Photo: CC BY, Alaina KrakowiakClematis alpina Clematis alpina Alpine Clematis Photo: CC0, author not statedClematis apiifolia Clematis apiifolia Three-leaf clematis Photo: CC BY, Timur KalininskyClematis aristata Clematis aristata Goat's-beard Photo: CC BY, Ian RainbowClematis armandii Clematis armandii Evergreen Clematis Photo: CC0, author not stated Clematis aureolata Ranunculaceae Clematis brachiata Clematis brachiata Traveler's-joy Photo: CC0, author not stated all 113 ›

Names & registers

Also known as Coriflora viticaulis. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidataWikipediaiNaturalist

The record

Family
Ranunculaceae
Described by
Steele
Native to
Virginia
Wild records
31 in range · 10 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; 1 record within 1 km of a botanic garden, herbarium or zoo left out (1 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 answeredasked 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 answeredasked 2026-10-21none of the photographs on this page is credited to GBIF: those shown are other sources', and GBIF's were the same photographs or were set aside by the photograph rules
Wikimedia Commons commons answeredasked 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.

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