Thesium ramosumHayne

WFO wfo-0000455069 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Thesium ramosum, photographed by Татьяна Горбушина
fig. a Татьяна Горбушина, CC0 1.0 / 2022-06-11 / obs. 205785033
Thesium ramosum, photographed by Aleksei Baushev
fig. b Aleksei Baushev, CC BY 4.0 / obs. 201618427
Thesium ramosum, photographed by Aleksei Baushev
fig. c Aleksei Baushev, CC BY 4.0 / obs. 201644084
Thesium ramosum, photographed by Liubov Ilminska
fig. d Liubov Ilminska, CC0 1.0 / obs. 201694070
Thesium ramosum, photographed by Aleksei Baushev
fig. e Aleksei Baushev, CC BY 4.0 / obs. 196459816
Thesium ramosum, photographed by Aleksei Baushev
fig. f Aleksei Baushev, CC BY 4.0 / obs. 196334128
Thesium ramosum, photographed by Aleksei Baushev
fig. g Aleksei Baushev, CC BY 4.0 / obs. 196259498
Thesium ramosum, photographed by Aleksei Baushev
fig. h Aleksei Baushev, CC BY 4.0 / obs. 196224480

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 28 botanical countries

Regions where Thesium ramosum is native: Inner Mongolia, Iran, Iraq, Kazakhstan, Lebanon-Syria, North Caucasus, Transcaucasus, Türkiye, Turkmenistan, Uzbekistan, West Siberia, Xinjiang, Albania, Austria, Bulgaria, Central European Russia, Czechia-Slovakia, East European Russia, Greece, Hungary, Italy, Krym, Northwest European Russia, NW. Balkan Pen., Romania, South European Russia, Türkiye-in-Europe, Ukraine Inner MongoliaIranIraqKazakhstanLebanon-SyriaNorth CaucasusTranscaucasusTürkiyeTurkmenistanUzbekistanWest SiberiaXinjiangAlbaniaAustriaBulgariaCentral European RussiaCzechia-SlovakiaEast European RussiaGreeceHungaryItalyKrymNorthwest European RussiaNW. Balkan Pen.RomaniaSouth European RussiaTürkiye-in-EuropeUkraine
Native distribution of Thesium ramosum, 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
Austria AUT
Bulgaria BUL
Central European Russia RUC
Czechia-Slovakia CZE
East European Russia RUE
Greece GRC
Hungary HUN
Italy ITA
Krym KRY
Northwest European Russia RUW
NW. Balkan Pen. YUG
Romania ROM
South European Russia RUS
Türkiye-in-Europe TUE
Ukraine UKR
Inner Mongolia CHI ASIA-TEMPERATE
Iran IRN
Iraq IRQ
Kazakhstan KAZ
Lebanon-Syria LBS
North Caucasus NCS
Transcaucasus TCS
Türkiye TUR
Turkmenistan TKM
Uzbekistan UZB
West Siberia WSB
Xinjiang CHX

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 69 in flower of 87 examined

Peak flowering in May. Each bar is the share of Thesium ramosum 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. 69 of 87 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 7 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.

Also published as 6 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.

  • Linosyris ramosa Kuntze
  • Thesium asperulum Boiss. & Buhse
  • Thesium brevibracteatum P.C.Tam
  • Thesium bulgaricum Velen.
  • Thesium carduchorum Hedge
  • Thesium palatinum Roth

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.