Polypodium hesperium is a species of fern known by the common name western polypody. It is native to western North America from British Columbia to California, and the Rocky Mountains to northern Mexico, where it grows in rocky habitat types.
This is an allopolyploid species of hybrid origin, its parent species being Polypodium glycyrrhiza and Polypodium amorphum.
This polypody anchors with a thin, scaly rhizome. It produces oblong leaves 25 to 35 centimetres (9.8 to 13.8 in) in maximum length and ...
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