Psephellus sumensis(Kalen.) Greuter

WFO wfo-0000086096 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Psephellus sumensis, photographed by Анастасия
fig. a Анастасия, CC BY 4.0 / 2022-04-23 / obs. 190018407
Psephellus sumensis, photographed by Aleksei Baushev
fig. b Aleksei Baushev, CC BY 4.0 / obs. 168828862
Psephellus sumensis, photographed by Aleksei Baushev
fig. c Aleksei Baushev, CC BY 4.0 / obs. 152252321
Psephellus sumensis, photographed by Aleksei Baushev
fig. d Aleksei Baushev, CC BY 4.0 / obs. 144466790
Psephellus sumensis, photographed by Татьяна Горбушина
fig. e Татьяна Горбушина, CC0 1.0 / obs. 140183928
Psephellus sumensis, photographed by Вячеслав Юсупов
fig. f Вячеслав Юсупов, CC BY 4.0 / obs. 137505176
Psephellus sumensis, photographed by Борис Георги
fig. g Борис Георги, CC BY 4.0 / obs. 132375936
Psephellus sumensis, photographed by Aleksei Baushev
fig. h Aleksei Baushev, CC BY 4.0 / obs. 126734310

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 4 botanical countries

Regions where Psephellus sumensis is native: Central European Russia, East European Russia, South European Russia, Ukraine Central European RussiaEast European RussiaSouth European RussiaUkraine
Native distribution of Psephellus sumensis, 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
Central European Russia RUC EUROPE
East European Russia RUE
South European Russia RUS
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 993 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -13.3 °C -11.2 °C -5.9 °C
Warmest month, mean daily high 23.5 °C 24.3 °C 26.1 °C
Annual rainfall 496 mm 576 mm 693 mm
Rainfall in the driest quarter 84 mm 101 mm 135 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 993 research-grade observations of Psephellus sumensis 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 2 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.

  • Centaurea sumensis Kalen.
  • Heterolophus sumensis (Kalen.) Soják

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.