Maresia nana(DC.) Batt.

WFO wfo-0000368397 Accepted WFO 2026-06 6 photographs CC BY

Plate 1 figs. a–f · 1 observation

This species has been photographed under an open licence only 1 time, so some figures below are different views of the same plant, taken on the same day, rather than different individuals. They are usually different parts of it: the leaf, the flower, the bark.

Maresia nana, photographed by Eleftherios Katsillis
fig. a Eleftherios Katsillis, CC BY 4.0 / 2021-04-18 / obs. 121766046
Maresia nana, photographed by Eleftherios Katsillis
fig. b Eleftherios Katsillis, CC BY 4.0 / obs. 121766100
Maresia nana, photographed by Eleftherios Katsillis
fig. c Eleftherios Katsillis, CC BY 4.0 / obs. 121766072
Maresia nana, photographed by Eleftherios Katsillis
fig. d Eleftherios Katsillis, CC BY 4.0 / obs. 121766122
Maresia nana, photographed by Eleftherios Katsillis
fig. e Eleftherios Katsillis, CC BY 4.0 / obs. 121766146
Maresia nana, photographed by Eleftherios Katsillis
fig. f Eleftherios Katsillis, CC BY 4.0 / obs. 121766152

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 27 botanical countries

Regions where Maresia nana is native: Algeria, Egypt, Libya, Morocco, Tunisia, Afghanistan, Cyprus, East Aegean Is., Iran, Iraq, Lebanon-Syria, Palestine, Sinai, Transcaucasus, Türkiye, Albania, Baleares, Bulgaria, Corse, France, Greece, Italy, Kriti, NW. Balkan Pen., Sicilia, Spain, Türkiye-in-Europe AlgeriaEgyptLibyaMoroccoTunisiaAfghanistanCyprusEast Aegean Is.IranIraqLebanon-SyriaPalestineSinaiTranscaucasusTürkiyeAlbaniaBulgariaCorseFranceGreeceItalyKritiNW. Balkan Pen.SiciliaSpainTürkiye-in-Europe Baleares
Native distribution of Maresia nana, 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
NW. Balkan Pen. YUG
Sicilia SIC
Spain SPA
Türkiye-in-Europe TUE
Afghanistan AFG ASIA-TEMPERATE
Cyprus CYP
East Aegean Is. EAI
Iran IRN
Iraq IRQ
Lebanon-Syria LBS
Palestine PAL
Sinai SIN
Transcaucasus TCS
Türkiye TUR
Algeria ALG AFRICA
Egypt EGY
Libya LBY
Morocco MOR
Tunisia TUN

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.

Where it actually grows measured, from 71 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 6.7 °C 10.5 °C 12.0 °C
Warmest month, mean daily high 24.8 °C 28.3 °C 31.4 °C
Annual rainfall 272 mm 580 mm 1,026 mm
Rainfall in the driest quarter 2 mm 10 mm 67 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 71 research-grade observations of Maresia nana 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.

Also published as 15 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.

  • Cheiranthus nanus Merk. ex DC.
  • Hesperis confusissima Kuntze
  • Malcolmia binervis (C.A.Mey.) Boiss.
  • Malcolmia confusa Boiss.
  • Malcolmia nana Boiss.
  • Malcolmia nana var. glabra Meikle
  • Maresia binervis Pomel
  • Maresia nana var. dasycarpa Maire
  • Maresia nana var. glabra (Meikle) Christodoulou & Hand
  • Maresia nana var. leiocarpa O.E.Schulz
  • Maresia nana var. nana Batt.
  • Matthiola nana Spreng.
  • Sisymbrium binerve C.A.Mey.
  • Sisymbrium nanum DC.
  • Wilckia confusa (Boiss.) Halácsy

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.