Steinmetz:Dryopteris

Dryopteris filix mas

Also known as (or relevant to) Dryopteris filix mas Aspidiurn filix mas Polypodium filix mas Polystichum filix mas Nephrodium filix mas Family Polypodiaceae English Names Male Fern Natural Habitat Europe (including Great Britain) temperate parts of Asia North- and South Africa U. S. A. Part(s) Used Herba Filicis maris Rhizoma Filicis maris

Constituent(s) rootstock: filicin filicic acid filicitannic acid filmarone filix red chlorophyll starch wax gum sugar essential oil fatty oil tannin resin salts potash aspidinol phloraspin albaspidin bitter principle Action herb: used as a substitute for hops; rootstock: vermifuge taeniafuge astringent pectoral slightly aperient toxic

Dryopteris marginalis

Also known as (or relevant to) Dryopteris marginalis Family Polypodiaceae English Names American Male Fern Leather wood fern American Aspidium Natural Habitat North America Part(s) Used Rhizoma Filicis marginalis = Radix Aspidii marginalis

Action vermifuge toxic

Dryopteris spinulosa

Also known as (or relevant to) Dryopteris spinulosa Aspidium spinulosum Family Polypodiaceae English Names Shield Fern Thorny Fern Natural Habitat Europe Part(s) Used Rhizoma Filicis splnulosi = Radix Aspidii spinulosi

Constituent(s) albaspidin Action vermifuge; same as Dryopteris Filix mas however its action is stronger