



Late boneset
Eupatorium serotinum Michx.
- light
- —
- water
- —
- tall
- 1.5 m
- wide
- —
Asteraceae
Also called Lateflowering thoroughwort, Late-flowering boneset, Late thoroughwort
Formerly Uncasia serotina
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
- Climate
- TemperateKew's checklist, not yet checked
- Wild in
- C. & E. U.S.A. to Mexico (Coahuila)Kew's checklist, not yet checked
- Height
- 99 cm to 2.0 mRead from Wikipedia, one source
- Flowers
- WhiteRead from Wikipedia, one source
Not known yet: grows as, light, spread, water, coldest it survives, heat, hottest it survives.
In other languages (4)
- root
- EUPSER
- Swedish
- höstflockel
- French
- Eupatoire tardive
- Ukrainian
- Сідач пізній
Where this comes from
- iNaturalist, read 2026-10-26, 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, Public domain
- iNaturalist, read 2026-10-26, CC BY
- iNaturalist, read 2026-10-26, CC BY
- iNaturalist, read 2026-10-26, CC BY-SA
- 3D model: Eupatorium serotinum (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.