Upright yellow woodsorrel
Oxalis stricta L.
- light
- Sun–part
- water
- Medium
- tall
- 18 cm
- wide
- —
Oxalidaceae
Also called Common yellow woodsorrel, Yellow woodsorrel, Sourgrass, Slender yellow woodsorrel, Common yellow oxalis
Formerly Acetosella fontana, Acetosella stricta, Ceratoxalis coloradensis, Ceratoxalis cymosa, and 22 more
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
- Annual or perennialKew's checklist, not yet checked
- Climate
- TemperateKew's checklist, not yet checked
- Wild in
- C. & E. China to N. & C. Japan, N. AmericaKew's checklist, not yet checked
- Light
- Full sun to part shade (3 h or more)Read from NC State Extension, one source
- Height
- 5 cm to 30 cmRead from NC State Extension, one source
- Water
- Average: moist, well drainedRead from NC State Extension, one source
- Flowers
- YellowRead from NC State Extension, one source
Not known yet: spread, coldest it survives, heat, hottest it survives.
In other languages (12)
- Dutch
- Stijve klaverzuring
- root
- OXASTR
- Korean
- 선괭이밥
- Japanese
- エゾタチカタバミ, 蝦夷立傍食
- German
- Aufrechter Sauerklee, Steifer Sauerklee
- Polish
- Szczawik żółty
- Czech
- šťavel evropský
- French
- Oxalide droit, Oxalis droit, Oxalide dressée
- Russian
- Кислица прямая
- Norwegian Bokmål
- stivgjøkesyre
- Chinese (China)
- 直酢浆草
- Danish
- Rank Surkløver
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 3.0
- iNaturalist, read 2026-10-25, CC BY
- iNaturalist, read 2026-10-25, CC BY
- iNaturalist, read 2026-10-25, CC BY
- 3D model: Oxalis stricta (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.