FolkKB

Christmas Fern

Polystichum acrostichoides

Polystichum acrostichoides, commonly known as wintergreen fern, is a plant native to North America and found in various regions including Japan, Taiwan, USA, and China. Traditionally, its use has not been recorded or documented in any specific medical practices. Scientifically, the complete genome sequence of Polystichum acrostichoides has been sequenced, providing insights into its genetic makeup. Studies have shown that this fern can maintain photosynthetic and hydraulic functions despite seasonal temperature changes, allowing it to fix carbon year-round even under varying conditions such as reduced snowfall leading to increased frost damage. Safety-wise, no major issues or drug interactions have been recorded for Polystichum acrostichoides, indicating that it is generally well-tolerated.

At a glance
Best evidence
A
Cautions
—

Informational only. Traditional use does not mean proven effectiveness. Evidence and safety vary — check the cited sources.

What the science says

  • The study presents the complete genome sequence of Polystichum acrostichoides. D PMID
  • The wintergreen fern Polystichum acrostichoides maintains photosynthetic and hydraulic function despite seasonal temperature changes, allowing it to fix carbon year-round. D PMID
  • The study revisits Mixia osmundae, confirming its presence in Japan, Taiwan, USA, and China, with hosts including Osmunda japonica and Osmundastrum cinnamomeum. A PMID
  • Reduced snowfall led to increased frost damage and altered photosynthetic rates in wintergreen ferns, varying by species. D PMID

Frequently asked questions

What is Christmas Fern?

Christmas Fern (Polystichum acrostichoides) is a plant documented in FolkKB's traditional-medicine reference, drawn from sourced literature and cross-checked against the evidence.

What does the scientific evidence say about Christmas Fern?

4 sourced findings are recorded for Christmas Fern; the strongest carries evidence grade A. For example: The study presents the complete genome sequence of Polystichum acrostichoides.

How strong is the evidence for Christmas Fern?

The strongest finding for Christmas Fern carries evidence grade A — strong evidence. Grades run A (strongest) to D (preliminary or traditional).

Is Christmas Fern safe? What are the side effects?

No major safety issues are recorded for Christmas Fern in our sources, but the data may be incomplete. Consult a qualified professional before use.

Does Christmas Fern interact with medications?

No drug interactions are recorded for Christmas Fern in our sources. This does not rule them out — check with a pharmacist.

What are the common names of Christmas Fern?

Christmas Fern is also known as: Многорядник верхоплодный, fougère-à-faucilles.

Is Christmas Fern a proven treatment?

No. FolkKB is informational only. Traditional use and early findings are not proof of efficacy or safety — consult a qualified professional and never self-treat.

Sources

  1. T2 Reduced winter snowfall damages the structure and function of wintergreen ferns. literature abstract metadata
  2. T2 The enigmatic Mixia osmundae revisited: a systematic review including new distributional data and recent advances in its phylogeny and phylogenomics. literature abstract metadata
  3. T2 Seasonal coordination of leaf hydraulics and gas exchange in a wintergreen fern. literature abstract metadata
  4. T2 The Complete Genome Sequence of Polystichum acrostichoides (Dryopteridaceae, Polypodiales). literature abstract metadata