P. americana may refer to:
- Paradelphomyia americana, a crane fly species in the genus Paradelphomyia
- Periplaneta americana, the American cockroach, palmetto bug or waterbug
- Persea americana, the avocado, aguacate, palta, butter pear or alligator pear tree
- Pilularia americana, the American pillwort, an aquatic fern species
- Prunus americana, a species of plum tree
- Phytolacca americana
See also
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This disambiguation page lists articles associated with the same abbreviated species scientific name.
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