Rough horsetail
Equisetum hyemale L.
- light
- Sun–part
- water
- Medium
- tall
- 65 cm
- wide
- —
Equisetaceae
Also called Tall scouringrush, Snakegrass, Indian Legos, Common scouring-rush, Rough Horsetail
Formerly Equisetum alpinum, Hippochaete hyemalis, Presla hyemalis
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
- Rhizomatous geophyteKew's checklist, not yet checked
- Climate
- TemperateKew's checklist, not yet checked
- Wild in
- SE. Greenland, Temp. EurasiaKew's checklist, not yet checked
- Light
- Full sun to part shade (3 h or more)Read from Wikipedia, one source
- Height
- 30 cm to 99 cmRead from Wikipedia, one source
- Water
- Average: moist, well drainedRead from Wikipedia, one source
Not known yet: spread, flowers, coldest it survives, heat, hottest it survives.
In other languages (12)
- Spanish
- Caña carricillo, Cola de caballo
- root
- icuitlapilincaguayo, tuxdhai, EQUHYE
- French
- prêle d'hiver
- German
- Winter-Schachtelhalm
- Czech
- přeslička zimní
- Japanese
- トクサ, 砥草
- Danish
- Skavgræs
- Dutch
- Schaafstro
- Russian
- Хвощ зимующий, Хвощ Комарова
- Norwegian Bokmål
- skavgras
- Estonian
- raudosi
- Finnish
- kangaskorte
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
- Wikipedia, read 2026-10-25, fact, cited
- Wikimedia Commons, read 2026-10-25, CC BY-SA 4.0
- iNaturalist, read 2026-10-25, CC BY
- iNaturalist, read 2026-10-25, CC0
- iNaturalist, read 2026-10-25, CC BY
- 3D model: Equisetum hyemale (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.