Pleurisy Root, 195 
Plum, 125 
Podophyllum, 91 
Poet’s Narcissus, 44 
Poison Dogwood, 148 
Poison Ivy, 149 
Poison Vine, 149 
Poke, Indian, 33 
Pokeweed, 75 
Pokeweed Family, 75 
Polanisia, 107 
Polemoniacez, 199 
Polemonium, 201 
Polycodium, 183 
Polygala, 145 
Polygala Family, 145 
Polygalacez, 145 
Polygonacez, 69 
Polygonatum, 40 
Polygonum, 70 
Pomme Blanche, 136 
Pontederia, 28 
Pontederiacex, 28 
Poor Man’s Weather- 
glass, 188 
Poplar, 50, 51, 93 
Poppy, 97 
Poppy Family, 96 
Poppy Mallow, 159, 160 
Populus, 50 
Portulaca, 77 
Portulaca Family, 76 
Portulacacee, 76 
Potato, 215 
Potato Vine, 198 
Potentilla, 119 
Prairie Apple, 138 
Prairie Fire, 221 
Prickly Ash, 144 
Prickly Pear, 166 
Primrose, 185 
Primrose Family, 184 
Primula, 185 
Primulacez, 184 
Prince’s Pine, 178 
Privet, 191 
Prunella, 211 
Prunus, 124 
Psedera, 156 
Psoralea, 135 
INDEX 
Ptelea, 144 
Puccoon, 206 
Pudding Berry, 176 
Pulse Family, 126 
Purslane, 77 
Purslane Family, 76 
Pyrola, 178 
Pyrola Family, 177 
Pyrolacee, 177 
Pyrrhopappus, 253 
Pyrus, 116 
Quaker Ladies, 229 
Quaking Asp, 51 
Quamasia, 38 
Quamoclit, 198 
Queen of the Prairie, 
120 
Quercus, 60 
Quince, 116 
Radicula, 104 
Radish, 103 . 
Radish, Wild, 103 
Ragweed, 248 
Ranunculacee, 83 
Ranunculus, 84 
Raphanus, 103 
Raspberry, 122 
Ratibida, 244 
Rattan Vine, 154 
Rattlebox, 81 
Rattlesnake Master, 171 
Rattlesnake Weed, 253 
Red Cedar, 19 
Red Root, 155 
Redbud, 130 
Reseda, 108 
Resedacee, 108 
Rhamnacee, 154 
Rhamnus, 154 
Rhododendron, 180 
Rhus, 148 
Rib Grass, 226 
Ribes, 112 
Robin Runaway, 211 
Robinia, 186 
Robin’s Plantain, 243 
Rocky Mountain Bee 
Plant, 108 
265 
Roripa, 104 
Rosa, 123 
Rosacex, 113 
Rose, 123, 124 
Rose Family, 113 
Rowan Tree, 117 
Rubiacewe, 227 
Rubus, 121 
Rudbeckia, 244 
Rue Anemone, 86 
Rue Family, 144 
Ruellia, 225 
Rumex, 70 
Rush Family, 30 
Rutacex, 144 
Rutland Beauty, 199 
Sage, 213 
Sagittaria, 21 
St. John’s-wort, 160 
St. John’s-wort Family, 
160 
Salicacez, 48 
Salix, 48 
Salomonia, 40 
Salvia, 213 
Sambucus, 234 
Sand Bur, 215 
Sandalwood Family, 67 
Sanguinaria, 96 
Sanicle, 172 
Sanicula, 172 
Santalacee, 67 
Sarothra, 160 
Sarracenia, 109 
Sarraceniacee, 108 
Sarsaparilla, 170 
Sassafras, 95 
Savin, 19 
Saxifraga, 109 
Saxifragacee, 109 
Saxifrage, 109, 110 
Saxifrage Family, 109 
Schrankia, 129 
Scilla, 387 
Scrophulariacez, 217 
Scutellaria, 210 
Sedge Family, 23 
Self-Heal, 211 
Seneca Snakeroot, 145 
