



Billygoat weed
ಉರಾಳபூம்புல்അപ്പ
Ageratum conyzoides L.
- light
- —
- water
- —
- tall
- 75 cm
- wide
- —
Asteraceae
Also called Billy goat weed, Tropical whiteweed, Invading Ageratum, Billy-Goat Weed, Blue Weed
Formerly Ageratum album, Ageratum arsenei, Ageratum brachystephanum, Ageratum ciliare, and 25 more
When it flowers
Flowers all year in the tropics.
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
- Annual or subshrubKew's checklist, not yet checked
- Climate
- Seasonally dry tropicalKew's checklist, not yet checked
- Wild in
- MexicoKew's checklist, not yet checked
- Height
- 51 cm to 99 cmRead from Wikipedia, one source
- Flowers
- White, purpleRead from Wikipedia, one source
Not known yet: light, spread, water, coldest it survives, heat, hottest it survives.
In other languages (12)
- Indonesian
- bandotan
- Chinese
- 勝紅薊 (藿香薊), 藿香薊, 胜红蓟
- Hawaiian
- maile honohono
- Spanish
- Santa Lucía, bak'elus, hierba de chivo
- Portuguese
- mentrasto
- Finnish
- brasiliansinitähtönen
- Czech
- nestařec hnidákovitý
- Japanese
- カッコウアザミ
- root
- zèb a mouton, labonn fanm, latifi
- Russian
- Агератум конизовидный
- Chinese (China)
- 藿香蓟
- Korean
- 등골나물아재비
Where this comes from
- iNaturalist, read 2026-10-26, CC0-1.0 (observation counts)
- Wikidata, read 2026-10-26, 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-SA 3.0
- iNaturalist, read 2026-10-26, CC BY
- iNaturalist, read 2026-10-26, CC BY
- iNaturalist, read 2026-10-26, CC BY
- 3D model: Ageratum conyzoides (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.