Watercress
Nasturtium officinale W.T.Aiton
- light
- —
- water
- Plenty
- tall
- 85 cm
- wide
- —
Brassicaceae
Also called Kowhitiwhiti, Stercors, Water Cress, Yellowcress, Water-cress
Formerly Arabis nasturtium, Baeumerta nasturtium, Cardamine aquatica, Cardamine nasturtium-aquaticum, and 17 more
When it flowers
Not known yet in the tropics: too few flowering observations to read a season from.
Read from iNaturalist photographs of it in flower. A month counts at 50% of the best month's flowering share (smoothed over three months) and 10% of its flowering count, from at least 100 flowering observations in the band.
If a child, a pet or anyone may have eaten a plant, contact a doctor or vet straight away, or call the National Poisons Information Centre (AIIMS, New Delhi) on 1800 116 117, free and open 24 hours.
Something wrong with it?About it
- Grows as
- Perennial or helophyteKew's checklist, not yet checked
- Climate
- TemperateKew's checklist, not yet checked
- Wild in
- Europe to C. Asia and Arabian Pen., Macaronesia, N. & NE. Trop. AfricaKew's checklist, not yet checked
- Height
- 51 cm to 1.2 mRead from Wikipedia, one source
- Water
- Plenty: wet or constantly moistRead from Wikipedia, one source
- Flowers
- White, greenRead from Wikipedia, one source
Not known yet: light, spread, coldest it survives, heat, hottest it survives.
In other languages (12)
- Spanish
- berro blanco, berro, Berro
- root
- canidejé, huanéburi, berroquilit
- Chinese
- 西洋菜, 水芥菜, 水芹菜
- German
- Echte Brunnenkresse, Brunnenkresse, Bachkresse
- Italian
- Crescione d'acqua
- Hebrew
- גרגר הנחלים, גרגיר הנחלים
- French
- Cresson de fontaine, Cresson de Fontaine, Cresson des fontaines
- Portuguese
- Agrião
- Hawaiian
- Lēkō
- Czech
- potočnice lékařská
- Danish
- Tykskulpet brøndkarse, Tykskulpet Brøndkarse
- Japanese
- オランダガラシ, クレソン, 阿蘭陀芥子
Where this comes from
- iNaturalist, read 2026-10-25, CC0-1.0 (observation counts)
- Wikidata, read 2026-10-25, CC0-1.0
- Kew's checklist, read 2026-10-24, CC-BY-4.0
- Wikipedia, read 2026-10-25, fact, cited
- Wikimedia Commons, read 2026-10-25, CC BY 4.0
- iNaturalist, read 2026-10-25, CC BY
- iNaturalist, read 2026-10-25, CC0
- iNaturalist, read 2026-10-25, CC BY
- 3D model: Nasturtium officinale (built for Vanagrha) by Vanagrha, own
A fact “checked by a majority of its sources” was settled by a vote of the pages it was read from, not by a person reading it; one marked “one source” rests on that page alone. Anything else not marked checked has not been checked yet. Where nothing is known, the page says so rather than guess.