Linum strictumL.

WFO wfo-0000363353 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Linum strictum, photographed by Quentin Groom
fig. a Quentin Groom, CC0 1.0 / 2022-05-14 / obs. 197471042
Linum strictum, photographed by Tim Johnson
fig. b Tim Johnson, CC BY 4.0 / obs. 197725008
Linum strictum, photographed by carnifex
fig. c carnifex, CC BY 4.0 / obs. 202516599
Linum strictum, photographed by Denys Vynokurov
fig. d Denys Vynokurov, CC BY 4.0 / obs. 195851329
Linum strictum, photographed by Duarte Frade
fig. e Duarte Frade, CC BY 4.0 / obs. 195460538
Linum strictum, photographed by Eleftherios Katsillis
fig. f Eleftherios Katsillis, CC BY 4.0 / obs. 189695238
Linum strictum, photographed by Ben Costamagna
fig. g Ben Costamagna, CC BY 4.0 / obs. 137863154
Linum strictum, photographed by Denis Bastianelli
fig. h Denis Bastianelli, CC BY 4.0 / obs. 136709297

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 39 botanical countries

Regions where Linum strictum is native: Algeria, Canary Is., Djibouti, Egypt, Eritrea, Ethiopia, Libya, Madeira, Morocco, Sudan-South Sudan, Tunisia, Western Sahara, Afghanistan, Cyprus, East Aegean Is., Iran, Iraq, Lebanon-Syria, Palestine, Transcaucasus, Türkiye, Yemen, Pakistan, West Himalaya, Albania, Baleares, Bulgaria, Corse, France, Greece, Italy, Kriti, Krym, NW. Balkan Pen., Portugal, Sardegna, Sicilia, Spain, Türkiye-in-Europe AlgeriaDjiboutiEgyptEritreaEthiopiaLibyaMoroccoSudan-South SudanTunisiaWestern SaharaAfghanistanCyprusEast Aegean Is.IranIraqLebanon-SyriaPalestineTranscaucasusTürkiyeYemenPakistanWest HimalayaAlbaniaBulgariaCorseFranceGreeceItalyKritiKrymNW. Balkan Pen.PortugalSiciliaSpainTürkiye-in-Europe Canary Is.MadeiraBalearesSardegna
Native distribution of Linum strictum, 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. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Albania ALB EUROPE
Baleares BAL
Bulgaria BUL
Corse COR
France FRA
Greece GRC
Italy ITA
Kriti KRI
Krym KRY
NW. Balkan Pen. YUG
Portugal POR
Sardegna SAR
Sicilia SIC
Spain SPA
Türkiye-in-Europe TUE
Algeria ALG AFRICA
Canary Is. CNY
Djibouti DJI
Egypt EGY
Eritrea ERI
Ethiopia ETH
Libya LBY
Madeira MDR
Morocco MOR
Sudan-South Sudan SUD
Tunisia TUN
Western Sahara WSA
Afghanistan AFG ASIA-TEMPERATE
Cyprus CYP
East Aegean Is. EAI
Iran IRN
Iraq IRQ
Lebanon-Syria LBS
Palestine PAL
Transcaucasus TCS
Türkiye TUR
Yemen YEM
Pakistan PAK ASIA-TROPICAL
West Himalaya WHM

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 282 in flower of 320 examined

Peak flowering in Jun. Each bar is the share of Linum strictum 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. 282 of 320 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 5 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 1,366 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -0.1 °C 5.3 °C 11.6 °C
Warmest month, mean daily high 23.0 °C 27.7 °C 32.5 °C
Annual rainfall 360 mm 671 mm 1,084 mm
Rainfall in the driest quarter 3 mm 57 mm 149 mm

It is found where winters bring light 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 1,366 research-grade observations of Linum strictum 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 39 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.

  • Cathartolinum alternum (Pers.) Rchb.
  • Cathartolinum corymbulosum Rchb.
  • Cathartolinum spicatum Rchb.
  • Cathartolinum strictum (L.) Rchb.
  • Cathartolinum strictum var. alternum (Pers.) Rchb.
  • Cathartolinum strictum var. spicatum (Pers.) Rchb.
  • Chrysolinum strictum (L.) Fourr.
  • Linopsis corymbosa Rchb.
  • Linum alterniflorum Delile ex Spreng.
  • Linum alternum (Pers.) Pieri
  • Linum gallicum subsp. strictum (L.) Bonnier
  • Linum inaequale C.Presl
  • Linum liburnicum Nyman
  • Linum paniculatum Desv. ex Steud.
  • Linum rigidum Sarato ex Parl.
  • Linum scabridum Steud. ex Boiss.
  • Linum sessiliflorum Lam.
  • Linum spicatum (Pers.) H.Lindb.
  • Linum spicatum (Pers.) Guss.
  • Linum spicatum var. sessiliflorum Guss.
  • Linum strictum f. alternum (Pers.) Batt.
  • Linum strictum f. capitatum (Guss.) Paol.
  • Linum strictum f. cymosum (Gren.) Paol.
  • Linum strictum f. spicatum (Pers.) Batt.

and 15 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.