{"id":"christmas-dagger","common_names":["Christmas Dagger","Christmas Dagger Fern","Christmas Fern"],"scientific_name":"Polystichum acrostichoides","urls":{"plant":"https://verdapaw.com/plants/christmas-dagger","cats":"https://verdapaw.com/plants/christmas-dagger/cats","dogs":"https://verdapaw.com/plants/christmas-dagger/dogs","data":"https://verdapaw.com/plants/christmas-dagger/data.json"},"toxicity":{"cat":{"severity":0,"grade":"S0 Safe","verdict_sentence":"Christmas Dagger (Polystichum acrostichoides) is non-toxic to cats (S0 Safe): the ASPCA lists this plant as non-toxic to cats, dogs, and horses.","toxic_principles":[],"toxic_parts":[],"symptoms":[],"sources":[{"url":"https://www.aspca.org/pet-care/aspca-poison-control/toxic-and-non-toxic-plants/christmas-dagger","name":"ASPCA","accessed_at":"2026-11-04"}],"reviewed_by":"auto","reviewed_at":"2026-11-04"},"dog":{"severity":0,"grade":"S0 Safe","verdict_sentence":"Christmas Dagger (Polystichum acrostichoides) is non-toxic to dogs (S0 Safe): the ASPCA lists this plant as non-toxic to cats, dogs, and horses.","toxic_principles":[],"toxic_parts":[],"symptoms":[],"sources":[{"url":"https://www.aspca.org/pet-care/aspca-poison-control/toxic-and-non-toxic-plants/christmas-dagger","name":"ASPCA","accessed_at":"2026-11-04"}],"reviewed_by":"auto","reviewed_at":"2026-11-04"}},"license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/","terms":"Free to reuse with attribution to Verdapaw and a link to the plant page."},"cite_as":"Verdapaw Plant × Pet Safety Index, verdapaw.com/plants/christmas-dagger, reviewed 2026-11-04"}