Common hoptree
Ptelea trifoliata L.
- light
- Any light
- water
- Medium
- tall
- 5.3 m
- wide
- 4.6 m
Rutaceae
Also called Wafer Ash, Wafer-ash, American Hop Tree, Stinking ash, Wafer ash
Formerly Dodonaea trifoliata
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
- Shrub or treeKew's checklist, not yet checked
- Climate
- TemperateKew's checklist, not yet checked
- Wild in
- SE. Canada to MexicoKew's checklist, not yet checked
- Light
- Sun or shadeRead from NC State Extension, one source
- Height
- 4.6 m to 6.1 mRead from NC State Extension, one source
- Spread
- 3.0 m to 6.1 mRead from NC State Extension, one source
- Water
- Average: moist, well drainedRead from NC State Extension, one source
- Flowers
- White, yellow, green, brownRead from NC State Extension, one source
- Coldest it survives
- -40 °C (USDA zone 3a)Read from NC State Extension, one source
Not known yet: heat, hottest it survives.
In other languages (12)
- Spanish
- Palo zorrillo
- root
- PTETRI
- Czech
- křídlatec trojlistý
- Dutch
- Hopboom
- Russian
- Птелея трёхлистная
- Lithuanian
- Trilapė ptelija
- Japanese
- ホップノキ
- Estonian
- harilik humalapuu, kolmiklehine humalapuu
- German
- Kleeulme, Dreiblättriger Lederstrauch
- Chinese
- 榆橘, 鲍尔温榆橘, 齿叶榆橘
- Chinese (China)
- 榆橘
- Swedish
- klöveralm
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
- NC State Extension, read 2026-10-25, fact, cited
- Wikimedia Commons, read 2026-10-25, CC BY-SA 4.0
- iNaturalist, read 2026-10-25, CC BY-SA
- iNaturalist, read 2026-10-25, CC BY-SA
- iNaturalist, read 2026-10-25, CC BY
- 3D model: Ptelea trifoliata (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.