Autumn fern
Dryopteris erythrosora (D.C.Eaton) Kuntze
- light
- Part–shade
- water
- Medium
- tall
- 53 cm
- wide
- 51 cm
Polypodiaceae
Also called Japanese buckler-fern
Formerly Aspidium erythrosorum, Aspidium prolificum, Dryopteris bulligera, Dryopteris distantipinna, and 9 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
- PerennialKew's checklist, not yet checked
- Climate
- TemperateKew's checklist, not yet checked
- Wild in
- China to Temp. E. AsiaKew's checklist, not yet checked
- Light
- Part shade to shade (under 6 h)Read from NC State Extension, one source
- Height
- 46 cm to 61 cmRead from NC State Extension and Wikipedia, checked by a majority of its sourcesBacked by both sources. Sources differ: NC State Extension 1.5–2 ft; Wikipedia 30–70 cm
- Spread
- 38 cm to 64 cmRead from NC State Extension and Wikipedia, checked: the middle of what its sources sayHalfway between its 2 sources, which differ. Sources differ: NC State Extension 2–3 ft; Wikipedia 15–35 cm
- Water
- Average: moist, well drainedRead from NC State Extension and Wikipedia, checked by a majority of its sourcesBacked by both sources
- Coldest it survives
- -26.1 °C (USDA zone 5b)Read from NC State Extension and Wikipedia, checked: the middle of what its sources sayHalfway between its 2 sources, which differ. Sources differ: NC State Extension -23.3 °C; Wikipedia -28.9 °C
Not known yet: flowers, heat, hottest it survives.
In other languages (11)
- Japanese
- ベニシダ, 紅羊歯, ミドリシダ
- Chinese
- 紅蓋鱗毛蕨, 红盖鳞毛蕨
- Dutch
- Roze stekelvaren
- Chinese (China)
- 红盖鳞毛蕨
- Korean
- 홍지네고사리
- French
- Fougère-mâle à sores rouges
- Russian
- Щитовник красносорусовый
- Polish
- nerecznica czerwonozarodnikowa
- Danish
- rødslørmangeløv
- Slovak
- papraď červenokôpková
- Simplified Chinese
- 红盖鳞毛蕨
Where this comes from
- iNaturalist, read 2026-10-26, 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 2026-10-26, CC BY-SA
- iNaturalist, read 2026-10-26, CC BY
- iNaturalist, read 2026-10-26, CC0
- 3D model: Dryopteris erythrosora (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.