Asyneuma canescens(Waldst. & Kit.) Griseb. & Schenk

WFO wfo-0000823055 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Asyneuma canescens, photographed by Conrad Altmann
fig. a Conrad Altmann, CC BY 4.0 / 2021-07-25 / obs. 146784797
Asyneuma canescens, photographed by Liubov Ilminska
fig. b Liubov Ilminska, CC0 1.0 / obs. 196124979
Asyneuma canescens, photographed by Oleksii Vasyliuk
fig. c Oleksii Vasyliuk, CC BY 4.0 / obs. 94894973
Asyneuma canescens, photographed by Denys Vynokurov
fig. d Denys Vynokurov, CC BY 4.0 / obs. 95037597
Asyneuma canescens, photographed by Valerii Darmostuk
fig. e Valerii Darmostuk, CC BY 4.0 / obs. 86303627
Asyneuma canescens, photographed by Conrad Altmann
fig. f Conrad Altmann, CC BY 4.0 / obs. 21652412
Asyneuma canescens, photographed by Galyna Mykytynets
fig. g Galyna Mykytynets, CC BY 4.0 / obs. 114319615
Asyneuma canescens, photographed by Oleksii Vasyliuk
fig. h Oleksii Vasyliuk, CC BY 4.0 / obs. 94894981

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 8 botanical countries

Regions where Asyneuma canescens is native: Albania, Bulgaria, Czechia-Slovakia, Greece, Hungary, NW. Balkan Pen., Romania, Ukraine AlbaniaBulgariaCzechia-SlovakiaGreeceHungaryNW. Balkan Pen.RomaniaUkraine
Native distribution of Asyneuma canescens, 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.
RegionTDWG codeContinent
Albania ALB EUROPE
Bulgaria BUL
Czechia-Slovakia CZE
Greece GRC
Hungary HUN
NW. Balkan Pen. YUG
Romania ROM
Ukraine UKR

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.

Where it actually grows measured, from 177 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -8.7 °C -6.2 °C -4.2 °C
Warmest month, mean daily high 22.8 °C 25.6 °C 27.9 °C
Annual rainfall 470 mm 589 mm 770 mm
Rainfall in the driest quarter 87 mm 106 mm 125 mm

It is found where winters bring hard 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 177 research-grade observations of Asyneuma canescens 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.

Also published as 27 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.

  • Asyneuma canescens f. nudiflorum (Davidov) Hayek
  • Asyneuma canescens subsp. salicifolium (Steud.) Soó
  • Asyneuma canescens var. foliosum (Nyman) Borza
  • Asyneuma cordifolium Bornm.
  • Asyneuma salicifolium (Kit. ex Schult.) A.F.Flerov
  • Asyneuma salicifolium Sosn.
  • Asyneuma salignum (Waldst & Kit. ex Besser) Fed.
  • Campanula canescens (Waldst. & Kit.) Roth
  • Campanula salicifolia Boiss.
  • Phyteuma ambiguum Schur
  • Phyteuma canescens Waldst. & Kit.
  • Phyteuma canescens f. laevis Rohlena
  • Phyteuma canescens subsp. foliosum Nyman
  • Phyteuma canescens var. salicifolium Steud.
  • Phyteuma foliosum Kit.
  • Phyteuma lanceolatum var. canescens (Waldst. & Kit.) Pers.
  • Phyteuma salicifolium Kit. ex Schult.
  • Phyteuma salignum Waldst. & Kit. ex Besser
  • Podanthum canescens (Waldst. & Kit.) Boiss.
  • Podanthum canescens f. laevis Rohlena
  • Podanthum canescens subsp. rhodopeum Formánek
  • Podanthum canescens var. nudiflorum Davidov
  • Podanthum canescens var. salicifolium (Steud.) Fomin
  • Podanthum salicifolium Rupr.

and 3 more.

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. 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.