Rubiaceae
Blue fieldmadder
Sherardia arvensis
- Family
- Rubiaceae
- Genus
- Sherardia
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Common names
By language (30)
- arz
- شيرارديا ارفينسيس
- Belarusian
- Шэрардыя
- Bulgarian
- Полски гръдник
- Chinese
- 雪亚迪草, 雪亞迪草, 田茜, 野茜
- Czech
- Bračka rolní
- Danish
- Almindelig Blåstjerne
- Dutch
- Blauw walstro
- English
- Blue fieldmadder, Blue field madder, Field madder
- Estonian
- Madarik
- Finnish
- Sinimatara
- French
- Shérardie des champs, Shérardie
- German
- Ackerröte
- Hebrew
- ששית מצויה
- hsb
- Rólny šešerjačk, Rólny šešeračk, Šešerjačk
- Icelandic
- Blámaðra
- Igbo
- Field madder
- Irish
- Dearg faille
- Japanese
- ハナヤエムグラ, ハナヤエムグラ属
- Latvian
- Tīruma šerardija
- Lithuanian
- Dirvinė šerardija
- Norwegian Bokmål
- Blåmaure
- Polish
- Rolnica pospolita, Rolnica
- Portuguese
- Sherardia, Granza, Granza-dos-campos
- Russian
- Жерардия
- Scottish Gaelic
- Màdar na Machrach
- Slovak
- Drapuľa roľná
- Spanish
- Sherardia, Raspilla, Rubeola
- Swedish
- Åkermadd, Blåmadra
- Ukrainian
- Шерардія польова
- Welsh
- Mandon las yr ŷd
Synonyms
- Asperula sherardia var. maritima (Griseb.) Höck
- Asperula sherardia var. typica Höck
- Asperula sherardii Hallier
- Asterophyllum scherardianum K.F.Schimp. & Spenn.
- Galium sherardia E.H.L.Krause
- Hexodontocarpus arvensis (L.) Dulac
- Sherardia affinis Gand.
- Sherardia agraria Tornab.
- Sherardia arvensis f. argentina Hicken
- Sherardia arvensis f. maritima (Griseb.) Litard.
- Sherardia arvensis subsp. maritima (Griseb.) Soják
- Sherardia arvensis subsp. maritima (Griseb.) Jáv.
- Sherardia arvensis var. albiflora Tinant
- Sherardia arvensis var. crispa Fr.
- Sherardia arvensis var. hirsuta Baguet
- Sherardia arvensis var. hirta R.Uechtr.
- Sherardia arvensis var. littoralis Conill
- Sherardia arvensis var. maritima Griseb.
- Sherardia arvensis var. mutica Wirtg.
- Sherardia arvensis var. neglecta Guépin ex Nyman
- Sherardia arvensis var. walrawenii Wirtg. ex Baguet
- Sherardia elliptica Gand.
- Sherardia maritima (Griseb.) Borbás
- Sherardia pantocsekii Gand.
- Sherardia umbellata Gilib.
Flowers
- In flower
- March to May (from 5,668 flowering iNaturalist observations worldwide)
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Annual
- In the US and Canada
- Canada: introduced, Hawaii: introduced, Lower 48 states: introduced
Photos
FlowerPhoto: Douglas Goldman, CC BY-SA 4.0, from iNaturalist 
FlowerPhoto: Alex Abair, CC BY 4.0, from iNaturalist 
FlowerPhoto: Erin Lalime, CC BY 4.0, from iNaturalist 
FlowerPhoto: Pto, CC BY 4.0, from iNaturalist 
Photo: Wikimedia Commons contributor, CC BY-SA 3.0, from Wikimedia Commons 
Photo: AnRo0002, CC0, from Wikimedia Commons 
Photo: zebedeugalinha, CC BY 4.0, from iNaturalist 
Photo: AnRo0002, CC0, from Wikimedia Commons 
Photo: Daniel Cahen, CC BY 4.0, from iNaturalist 
Photo: AnRo0002, CC0, from Wikimedia Commons 
Photo: Ondřej Křivan, CC BY 4.0, from iNaturalist 
Photo: AnRo0002, CC0, from Wikimedia Commons
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.