190 



FARM WEEDS OF CANADA 



Plate Page 



Greater 51 136 



Hoary 139 



Pale 137 



Pleurisy-root 119 



Polanisia graveolens . . 102 



POLYGON ACEAE 40 



Polygonum 40 



aviculare 41, 47 



Convolvulus 12 41, 48 



lapathifolium 11 47 



pennsylvanicum 47 



Persicaria 11 41, 46 



Portulaca grandiflora 73 



oleracea 24 74 



Portulaca, Wild 24 74 



PORTULACACEAE 73 



Potentilla 106 



Anserina 107 



hirsuta 39 106 



monspeliensis 39 106 



var. norvegica 106 



Poverty Weed 55 148 



Prideweed 54 146 



Prunella vulgaris 131 



Purslane Family 73 



Purslane 24 74 



Milk Ill 



Pusley 24 74 



Rabbit-ear 34 94 



Radish, Jointed 32 90 



Wild 32 90 



Ragged Robin 67 



Ragweed, Common 57 152 



False 149 



Great 56 150 



Perennial 153 



Smaller 57 152 



Tall 56 150 



Ragwort, Common 61 160 



Tansy 61 160 



Ramsted 134 



RANUNCULACEAE 75 



Ranunculus abortivus 77 



acris 25 76 



sceleratus 77 



Rape 93 



Bird 93 



German 93 



Raphanus Raphanistrum 32 90 



Rattle Weed 22 70 



Plate Page 



Red Root 127 



Rhinanthus Crista-galli 133 



Ribgrass 52 138 



Ribwort Family 135 



Ribwort 52 138 



Rock Cresses 101 



Rocket 94 



Prairie 101 



Salad 94 



Yellow 101 



Rosa adcularis, var. Bour- 



geauiana 104 



arkansana 103 



pratincola 103 



ROSACEAE 103 



Rose Family 103 



Rose (St. Johns-wort) 41 112 



Roses, Prairie 103 



Rose Moss 73 



Rosin 41 112 



Rotation of Crops, Short 17 



Rough Weed 49 132 



RUBIACEAE 140 



Rudheckia hirta 58 154 



Rumex 40 



Acetosa 45 



Acetosella 10 44 



congloineratus 43 



crispus 9 42, 43 



obtusifolius 43 



venosus 43 



Rush Family 40 



Rush, Slender 40 



Rutabaga 93 



Sage Brushes 159 



Lesser Pasture 159 



Pasture 159 



Sweet 159 



Salsify 169 



Salsola 50 



Salsola Kali, var. tenuifolia. .15 54 



var. Tragus. ... 15 54 



Tragus 15 54 



Sandweed .17 60 



Saponaria 59 



officinalis 73 



Vaccaria 23 72 



Savastana odorata 2 26 



Scarlet IJghtning 67 



