noun
cliff brake of California and Baja California having purple-brown leafstalks
• Syn: ↑Pellaea mucronata, ↑Pellaea ornithopus
• Hypernyms: ↑cliff brake, ↑cliff-brake, ↑rock brake
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noun : a rock brake (Pellaea ornithopus) of the Pacific coast of No. America having some of the lower pinnules replaced by secondary pinnae each consisting of three sessile pinnules arranged so as to suggest a bird's foot
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bird's-foot fern,
1. a small, tropical American fern whose foliage suggests a bird's foot.
2. a fern of the Pacific Coast.
Useful english dictionary. 2012.