Bryonia creticaL.

Cretan bryony

WFO wfo-0000572960 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Bryonia cretica, photographed by John Kenrick Gibson
fig. a John Kenrick Gibson, CC0 1.0 / 2022-06-10 / obs. 205583082

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 30 botanical countries

Regions where Bryonia cretica is native: Algeria, Egypt, Libya, Morocco, Tunisia, Cyprus, East Aegean Is., Lebanon-Syria, Palestine, Türkiye, Albania, Austria, Belgium, Bulgaria, Corse, Czechia-Slovakia, France, Germany, Great Britain, Greece, Hungary, Italy, Kriti, Netherlands, NW. Balkan Pen., Portugal, Sardegna, Sicilia, Spain, Switzerland AlgeriaEgyptLibyaMoroccoTunisiaCyprusEast Aegean Is.Lebanon-SyriaPalestineTürkiyeAlbaniaAustriaBelgiumBulgariaCorseCzechia-SlovakiaFranceGermanyGreeceHungaryItalyKritiNetherlandsNW. Balkan Pen.PortugalSiciliaSpainSwitzerland Sardegna
Native distribution of Bryonia cretica, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Albania ALB EUROPE
Austria AUT
Belgium BGM
Bulgaria BUL
Corse COR
Czechia-Slovakia CZE
France FRA
Germany GER
Great Britain GRB
Greece GRC
Hungary HUN
Italy ITA
Kriti KRI
Netherlands NET
NW. Balkan Pen. YUG
Portugal POR
Sardegna SAR
Sicilia SIC
Spain SPA
Switzerland SWI
Algeria ALG AFRICA
Egypt EGY
Libya LBY
Morocco MOR
Tunisia TUN
Cyprus CYP ASIA-TEMPERATE
East Aegean Is. EAI
Lebanon-Syria LBS
Palestine PAL
Türkiye TUR

Not drawn on the map: Great Britain. We hold no public-domain boundary for this region, so it is listed rather than guessed at.

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Flowering 927 in flower of 1,288 examined

Proportion of examined Bryonia cretica in flower, by month
Month In flower Examined Share 95% interval
Jan 1 9 11% 2% to 44%
Feb 6 10 60% 31% to 83%
Mar 16 42 38% 25% to 53%
Apr 90 153 59% 51% to 66%
May 343 392 88% 84% to 90%
Jun 236 275 86% 81% to 89%
Jul 94 133 71% 62% to 78%
Aug 63 122 52% 43% to 60%
Sep 48 89 54% 44% to 64%
Oct 21 39 54% 39% to 68%
Nov 7 18 39% 20% to 61%
Dec 2 6 33% 10% to 70%

Peak flowering in May. Each bar is the share of Bryonia cretica observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 927 of 1,288 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Where it actually grows measured, from 2,015 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -2.3 °C 1.4 °C 5.9 °C
Warmest month, mean daily high 19.7 °C 23.2 °C 31.2 °C
Annual rainfall 527 mm 717 mm 1,123 mm
Rainfall in the driest quarter 30 mm 139 mm 195 mm

It is found where winters bring light frost. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 2,015 research-grade observations of Bryonia cretica that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.

This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one. Climate from CHELSA V2.1 (Karger et al. 2017); occurrences from 10.15468/dl.cgje2x.

Also published as 24 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Bryonia acuta Desf.
  • Bryonia acuta var. sicula (Jan) Fiori & Paol.
  • Bryonia angulosa (Mabille ex Gillet) Bouchard
  • Bryonia corsica (Maire) A.W.Hill
  • Bryonia cretica f. monoica (Nábělek) Feinbrun
  • Bryonia cretica subsp. marmorata (E.Petit) Govaerts
  • Bryonia cretica var. monoica Nábělek
  • Bryonia digyna Pomel
  • Bryonia dioica Jacq.
  • Bryonia dioica f. corsica Maire
  • Bryonia dioica var. acuta (Desf.) Cogn.
  • Bryonia dioica var. angulosa Mabille ex Gill.
  • Bryonia dioica var. digyna (Pomel) Batt.
  • Bryonia dioica var. elongata Ten.
  • Bryonia dioica var. lutea Ser.
  • Bryonia dioica var. sicula Jan
  • Bryonia lutea Bast. ex Ser.
  • Bryonia marmorata E.Petit
  • Bryonia nitida Link
  • Bryonia ruderalis Salisb.
  • Bryonia scarlatina Dumort.
  • Bryonia sicula (Jan) Guss.
  • Bryonia syriaca var. marmorata (Petit) Fiori & Paol.
  • Bryonia tinei A.Huet ex Cogn.

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.