Dryopteridaceae
Christmas fern
Polystichum acrostichoides
- Family
- Dryopteridaceae
- Genus
- Polystichum
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Common names
By language (2)
- Chinese
- 圣诞耳蕨
- English
- Christmas fern
Synonyms
- Aetopteron acrostichoides (Michx.) House
- Aspidium acrostichoides (Michx.) Sw.
- Aspidium acrostichoides var. incisum A.Gray
- Aspidium auriculatum Schkuhr
- Aspidium schweinitzii L.C.Beck
- Dryopteris acrostichoides (Michx.) Kuntze
- Nephrodium acrostichoides Michx.
- Nephrodium acrostichoides var. crispum Hopkins
- Nephrodium acrostichoides var. incisum (A.Gray) Hopkins
- Polypodium acrostichoides (Michx.) Poir.
- Polystichum acrostichoides f. acrostichoides
- Polystichum acrostichoides f. crispum Clute
- Polystichum acrostichoides f. cristatum Clute
- Polystichum acrostichoides f. demittens C.F.Reed
- Polystichum acrostichoides f. furcatum F.Seym.
- Polystichum acrostichoides f. gymnosorum Neidorf
- Polystichum acrostichoides f. incisum (A.Gray) Gilbert
- Polystichum acrostichoides f. lanceolatum Clute
- Polystichum acrostichoides f. ligulatum Gruber
- Polystichum acrostichoides f. multifida Clute
- Polystichum acrostichoides f. orbiculatum Eames
- Polystichum acrostichoides f. recurvatum Clute
- Polystichum acrostichoides f. spathiforme C.F.Reed
- Polystichum acrostichoides f. ventroperaferens Neidorf
- Polystichum acrostichoides var. crispum Clute
- Polystichum acrostichoides var. incisum A.Gray
- Polystichum acrostichoides var. schweinitzii (Beck) Small
- Polystichum acrostichoides var. schweinitzii (Beck) Millsp.
- Thelypteris acrostichoides (Michx.) Nieuwl.
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Perennial
- In the US and Canada
- Canada: native, Lower 48 states: native
Photos
Photo: Photo, CC BY-SA 2.5, from Wikimedia Commons 
Photo: Photo by and, CC BY-SA 2.5, from Wikimedia Commons 
Photo: sonnia hill, CC BY 2.0, from Wikimedia Commons 
Photo: sonnia hill, CC BY 2.0, from Wikimedia Commons 
Photo: sonnia hill, CC BY 2.0, from Wikimedia Commons 
Photo: sonnia hill, CC BY 2.0, from Wikimedia Commons
More in Polystichum
- Hard shield-fernPolystichum aculeatumDryopteridaceae
- Northern hollyfernPolystichum lonchitisDryopteridaceae
- Braun's hollyfernPolystichum brauniiDryopteridaceae
- Western swordfernPolystichum munitumDryopteridaceae
- Madeira shield-fernPolystichum drepanumDryopteridaceae
- Lemmon's hollyfernPolystichum lemmoniiDryopteridaceae
- Mountain hollyfernPolystichum scopulinumDryopteridaceae
- California swordfernPolystichum californicumDryopteridaceae
- Polystichum craspedosorumDryopteridaceae
- Dudley's swordfernPolystichum dudleyiDryopteridaceae
- Polystichum hancockiiDryopteridaceae
- Polystichum neolobatumDryopteridaceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.