Phyteuma scheuchzeri

Plate 1 figs. a–h · 8 separate observations

Phyteuma scheuchzeri, photographed by Christian Berg — fig. b Christian Berg, CC BY 4.0 / obs. 84245700

Phyteuma scheuchzeri, photographed by dariapi — fig. d dariapi, CC BY 4.0 / obs. 67441686

Phyteuma scheuchzeri, photographed by Parco Monte Barro — fig. e Parco Monte Barro, CC BY 4.0 / obs. 200205166

Phyteuma scheuchzeri, photographed by Franco Folini — fig. h Franco Folini, CC BY 4.0 / obs. 152390855

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

Native distribution of Phyteuma scheuchzeri, 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.

Region	TDWG code	Continent
France	FRA	EUROPE
Italy	ITA
NW. Balkan Pen.	YUG
Switzerland	SWI

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 101 in flower of 108 examined

50%

89%

100%

97%

Proportion of examined Phyteuma scheuchzeri in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	0	0	too few examined
Feb	0	0	too few examined
Mar	0	1	too few examined
Apr	3	6	50%	19% to 81%
May	17	19	89%	69% to 97%
Jun	44	44	100%	92% to 100%
Jul	35	36	97%	86% to 100%
Aug	1	1	too few examined
Sep	1	1	too few examined
Oct	0	0	too few examined
Nov	0	0	too few examined
Dec	0	0	too few examined

Peak flowering in Jun. Each bar is the share of Phyteuma scheuchzeri 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. 101 of 108 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 8 months have fewer than 5 examined observations, so no proportion is drawn for them. 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 741 observations

Condition	5th percentile	Median	95th percentile
Coldest month, mean daily low	-14.2 °C	-5.8 °C	-1.3 °C
Warmest month, mean daily high	16.0 °C	22.1 °C	26.8 °C
Annual rainfall	976 mm	1,521 mm	2,252 mm
Rainfall in the driest quarter	128 mm	199 mm	276 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 741 research-grade observations of Phyteuma scheuchzeri 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 17 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.

Phyteuma charmelii var. serratum (W.D.J.Koch) Rouy
Phyteuma charmelioides Biroli
Phyteuma columnae Thomas
Phyteuma corniculatum [Clairv.]
Phyteuma corniculatum subsp. charmelioides (Biroli) Rich.Schulz
Phyteuma corniculatum subsp. columnae (E.Thomas) Gaudin
Phyteuma corniculatum var. angustifolium Gaudin
Phyteuma corniculatum var. petraeum Rich.Schulz
Phyteuma corniculatum var. serratum (W.D.J.Koch) Rich.Schulz
Phyteuma corniculatum var. vulgare Rich.Schulz
Phyteuma humile Roth
Phyteuma ovatum Lam.
Phyteuma scheuchzeri subsp. charmelioides (Biroli) Hayek
Phyteuma scheuchzeri var. leucanthum Schur
Phyteuma scheuchzeri var. michelii Schult.
Phyteuma scheuchzeri var. serratum W.D.J.Koch
Rapunculus scheuchzeri Bubani

Sourcesevery claim on this page

World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
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.