Crucianella maritimaL.

WFO wfo-0000932880 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Crucianella maritima, photographed by carnifex
fig. a carnifex, CC BY 4.0 / 2022-05-09 / obs. 202151348

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.

The specimen a real sheet, in a real collection

Herbarium
The New York Botanical Garden
Accession
05031987
Filed as
Crucianella maritima L.
Det. by
not recorded on this sheet
Collected
M. R. K. Lambert 1966-07-05
Origin
MA
The sheet
View the digitised specimen (CC BY 4.0)

A real pressed plant, in a real collection, under the accession number above. Not an illustration of one. The holding institution does not serve this sheet’s image to third parties, so there is no photograph here. The record is real and the link goes to it. Where we hold no openly licensed sheet for a species this section is simply absent, and where a sheet never recorded who determined it, that field stays empty rather than being filled in. Roughly half of all herbarium sheets never recorded a determiner, which is ordinary.

Native range 16 botanical countries

Regions where Crucianella maritima is native: Algeria, Egypt, Libya, Morocco, Tunisia, Palestine, Sinai, Baleares, Corse, France, Greece, Italy, Portugal, Sardegna, Sicilia, Spain AlgeriaEgyptLibyaMoroccoTunisiaPalestineSinaiCorseFranceGreeceItalyPortugalSiciliaSpain BalearesSardegna
Native distribution of Crucianella maritima, 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
Baleares BAL EUROPE
Corse COR
France FRA
Greece GRC
Italy ITA
Portugal POR
Sardegna SAR
Sicilia SIC
Spain SPA
Algeria ALG AFRICA
Egypt EGY
Libya LBY
Morocco MOR
Tunisia TUN
Palestine PAL ASIA-TEMPERATE
Sinai SIN

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 59 in flower of 118 examined

Proportion of examined Crucianella maritima in flower, by month
Month In flower Examined Share 95% interval
Jan 0 11 0% 0% to 26%
Feb 1 13 8% 1% to 33%
Mar 0 10 0% 0% to 28%
Apr 2 9 22% 6% to 55%
May 17 22 77% 57% to 90%
Jun 23 23 100% 86% to 100%
Jul 11 13 85% 58% to 96%
Aug 3 4 too few examined
Sep 1 1 too few examined
Oct 1 2 too few examined
Nov 0 2 too few examined
Dec 0 8 0% 0% to 32%

Peak flowering in Jun. Each bar is the share of Crucianella maritima 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. 59 of 118 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 4 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 1,337 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 6.6 °C 9.5 °C 12.1 °C
Warmest month, mean daily high 20.8 °C 25.1 °C 29.7 °C
Annual rainfall 273 mm 674 mm 1,702 mm
Rainfall in the driest quarter 8 mm 28 mm 147 mm

It is barely found anywhere that freezes. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 1,337 research-grade observations of Crucianella maritima 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 5 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.

  • Crucianella erecta Shecut
  • Crucianella maritima f. recurvata Sennen
  • Crucianella maritima subsp. rupestris (Guss.) Nyman
  • Crucianella rupestris Guss.
  • Rubeola maritima (L.) Moench

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.