Thesium linophyllonL.

flaxleaf

WFO wfo-0000454748 Accepted WFO 2026-06 8 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Thesium linophyllon, photographed by Christian Berg
fig. a Christian Berg, CC BY 4.0 / 2022-05-02 / obs. 194282170
Thesium linophyllon, photographed by Patrick Hacker
fig. b Patrick Hacker, CC BY 4.0 / obs. 134554426
Thesium linophyllon, photographed by nicoweg
fig. c nicoweg, CC0 1.0 / obs. 131300497
Thesium linophyllon, photographed by Liubov Ilminska
fig. d Liubov Ilminska, CC0 1.0 / obs. 196713429
Thesium linophyllon, photographed by Alexis Tinker-Tsavalas
fig. e Alexis Tinker-Tsavalas, CC BY 4.0 / obs. 84662309
Thesium linophyllon, photographed by Christian Berg
fig. f Christian Berg, CC BY 4.0 / obs. 75537398
Thesium linophyllon, photographed by Patrick Hacker
fig. g Patrick Hacker, CC BY 4.0 / obs. 69401613
Thesium linophyllon, photographed by Emanuele Santarelli
fig. h Emanuele Santarelli, CC BY-SA 4.0 / obs. 41659087

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 16 botanical countries

Regions where Thesium linophyllon is native: Albania, Austria, Baltic States, Belarus, Bulgaria, Czechia-Slovakia, France, Germany, Greece, Hungary, Italy, NW. Balkan Pen., Poland, Romania, Switzerland, Ukraine AlbaniaAustriaBaltic StatesBelarusBulgariaCzechia-SlovakiaFranceGermanyGreeceHungaryItalyNW. Balkan Pen.PolandRomaniaSwitzerlandUkraine
Native distribution of Thesium linophyllon, 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
Baltic States BLT
Belarus BLR
Bulgaria BUL
Czechia-Slovakia CZE
France FRA
Germany GER
Greece GRC
Hungary HUN
Italy ITA
NW. Balkan Pen. YUG
Poland POL
Romania ROM
Switzerland SWI
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.

Flowering 114 in flower of 142 examined

Peak flowering in May. Each bar is the share of Thesium linophyllon 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. 114 of 142 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.

Also published as 11 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.

  • Linophyllum clusii Bubani
  • Linosyris intermedia (Schrad.) Kuntze
  • Linosyris linophyllon Kuntze
  • Thesium arvense Horv.
  • Thesium fulvopes Griess.
  • Thesium hutterianum Opiz
  • Thesium intermedium Schrad.
  • Thesium linifolium Schrank
  • Thesium linophyllon var. pilosiusculum Lawalrée
  • Thesium transsilvanicum Schur
  • Xerololophus trinervis Dulac

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.