Part 72

Phytolacca decandra, 92

Pluchea camphorata, 208

Podophyllum peltatum, 30

Pogonia ophioglossoides, 185

Polygala cruciata, 188

Polygala paucifolia, 186

Polygala polygama, 186

Polygala sanguinea, 186

Polygonatum biflorum, 44

Polygonatum giganteum, 44

Polygonella articulata, 212

Polygonum aviculare, 212

Polygonum hydropiperoides, 83

Polygonum Pennsylvanicum, 212

Polygonum scandens, 83

Pontedaria cordata, 257

Potentilla argentea, 122

Potentilla Canadense, 126

Potentilla fruticosa, 126

Prenanthes alba, 284

Prenanthes serpentaria, 284

Pyrola elliptica, 66

Pyrola rotundifolia, 66

Pyrus arbutifolia, 44

Pyxidanthera barbulata, 28

Ranunculus ambigens, 127

Raphanus Raphanistrum, 130

Rhexia Virginica, 200