Ragwort
জ্যাকোবিয়া ভালগারিস
Jacobaea vulgaris Gaertn.
- light
- Full sun
- water
- Medium
- tall
- 46 cm
- wide
- —
Asteraceae
Also called Common ragwort, Tansy ragwort, Stinking Willie, Tansy, Tansy-ragwort
Formerly Senecio jacobaea
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
- PerennialKew's checklist, not yet checked
- Climate
- TemperateKew's checklist, not yet checked
- Wild in
- Europe to Mongolia and CaucasusKew's checklist, not yet checked
- Light
- Full sun (6 h or more)Read from NC State Extension, one source
- Height
- 46 cmRead from NC State Extension, one source
- Water
- Average: moist, well drainedRead from NC State Extension, one source
- Flowers
- YellowRead from NC State Extension, one source
- Coldest it survives
- -28.9 °C (USDA zone 5a)Read from NC State Extension, one source
Not known yet: spread, heat, hottest it survives.
In other languages (12)
- French
- Séneçon jacobée, Séneçon de Jacob, Herbe de Saint-Jacques
- German
- Jakobs-Greiskraut, Jakob-Greiskraut, Jakobs-Kreuzkraut
- Catalan
- herba de Sant Jaume
- Russian
- Якобея обыкновенная, Крестовник Якова
- Spanish
- hierba de Santiago, hierba cana
- Polish
- Starzec Jakubek
- Czech
- starček přímětník
- Dutch
- jakobskruiskruid
- Chinese
- 千里光, 疆千里光
- Estonian
- voolme-ristirohi, harilik voolmerohi
- root
- Cushag, Buachalán buí, Llysiau'r gingroen
- Norwegian Bokmål
- landøyda
Where this comes from
- iNaturalist, read 2026-10-25, CC0-1.0 (observation counts)
- Wikidata, read 2026-10-26, CC0-1.0
- Kew's checklist, read 2026-10-24, CC-BY-4.0
- NC State Extension, read 2026-10-25, fact, cited
- Wikimedia Commons, read 2026-10-25, CC BY-SA 3.0
- iNaturalist, read 2026-10-25, CC BY
- iNaturalist, read 2026-10-25, CC BY
- iNaturalist, read 2026-10-25, CC BY
- 3D model: Jacobaea vulgaris (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.