Leaf is All is meticulously inventivve as it considers varieties of replication--benign and malign--and the intersections, the politics, of our communal narratives of family and science. A background in biology informs this poet's compassionate, light-footed dance through patent language, botanical vocabulary, catalogs of recyclable plastics and a poem of Goethe's, all of which contribute to a larger meditation on what it means, in the dawning of a new century, to be a father, husband, and son.