Polycarpic, term used by DeCandolle in the sense of perennial.
Polycotyledonous, having many (more than two) cotyledons, as Pines, [23].
Polygamous, having some perfect and some unisexual flowers, [85].
Polygonal, many-angled.
Polygynous, with many pistils or styles, [105].
Polymerous, formed of many parts of each set.
Polymorphous, of several or varying forms.
Polypetalous, when the petals are distinct or separate (whether few or many), [89].
Polyphyllous, many-leaved; formed of several distinct pieces.
Polysepalous, same as the last when applied to the calyx, [89].