Palmers Bloodleaf
Palmers Cocks Comb
Papala
Pastureweed
Pearly Globe Amaranth
Pfaffia
Philoxerus
Pigweed
Plains Snakecotton
Powells Amaranth
Prince-of-wales Feather
Pringles Amaranth
Prostrate Pigweed
Purple Amaranth