Sulfur buckwheat
Eriogonum umbellatum Torr.
- light
- Full sun
- water
- Little
- tall
- 23 cm
- wide
- 61 cm
Polygonaceae
Also called Sulphur buckwheat, Sulphur flower, Sulphur-flower buckwheat, Sulfur-flower buckwheat
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
- Subshrub or shrubKew's checklist, not yet checked
- Climate
- TemperateKew's checklist, not yet checked
- Wild in
- NW. U.S.A. to New MexicoKew's checklist, not yet checked
- Light
- Full sun (6 h or more)Read from NC State Extension, one source
- Height
- 15 cm to 30 cmRead from NC State Extension, one source
- Spread
- 30 cm to 91 cmRead from NC State Extension, one source
- Water
- Little: takes droughtRead from Wikipedia, one source
- Flowers
- YellowRead from NC State Extension and Wikipedia, checked by a majority of its sourcesBacked by both sources. Sources differ: NC State Extension yellow; Wikipedia purple, white, yellow
- Coldest it survives
- -34.4 °C (USDA zone 4a)Read from NC State Extension, one source
Not known yet: heat, hottest it survives.
In other languages (6)
- French
- ériogone à ombelle
- Russian
- Эриогонум зонтичный
- Finnish
- rikkipumissi
- Chinese (China)
- 绣毛蓼
- root
- nakadonup
- Ukrainian
- Еріогон парасольковий
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
- Wikipedia, read 2026-10-25, fact, cited
- Wikimedia Commons, read 2026-10-25, CC BY-SA 3.0
- iNaturalist, read 2026-10-25, CC0
- iNaturalist, read 2026-10-25, CC BY
- iNaturalist, read 2026-10-25, CC BY
- 3D model: Eriogonum umbellatum (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.