INDEX TO COMMON NAMES 
Rocky Mountain fringed gentian. 
iris_ 
kalmia_ 
maple_ 
red cedar_ 
woodsia_ 
Rose_ 
Bourgeau_ 
family_ 
Fendler_ 
prickly_ 
Woods_ 
Rough blistercress_ 
Rush_ 
family. __ 
scouring_ 
Russet buffaloberry___ 
Russian thistle_ 
Rusty menziesia_ 
Rye, giant wild_ 
Sagebrush.__ 
big- 
cudweed__ 
low. ._____ 
silver_ 
Sandlewood family_ 
Sandverbena, yellow__ 
Sandwort_ 
Sargent cottonwood_ 
Saskatoon_ 
Saxifrage_ 
family_ 
Scarlet globemallow__ 
Scouring-rush_ 
Sedge __ 
cotton_ 
family_ 
Selaginella_ 
family_ 
Selfheal_ 
Serra butterweed_ 
Serviceberry ...___ 
Shadbush._ 
Sheep sorrel_ 
Sheperds-purse_ 
Shootingstar_ 
southern._ 
Shrubby cinquefoil_ 
Siberian onion_ 
Sidebells pyrola- 
Silky lupine_ 
147 
Page 
Silver cinquefoil_ 76 
sagebrush_ 133 
Silverberry_ 90 
Silverweed_ 76 
Skullcap_ 107 
Sleepy catchfly_ 55 
Smooth Labrador-tea_ 97 
Snakeweed, broom_ 121 
Snowberry_ 115 
oommon_ 115 
western_ 115 
whortleleaf_ 115 
Snowbrush_ 85 
Solomonplume_ 41 
Sorrel, sheep_ 50 
Southern shootingstar_ 99 
Sowthistle, prickly_ 138 
Spearmint_ 108 
Speedwell_ 109 
Spikerush._ 36 
Spiny hop-sage_ 53 
Spirea_ 74 
Spreading dogbane_ 101 
Springbeauty_ 54 
Spurge_ 84 
family_ 84 
Spruce, Engelmann_ 23 
Squaw currant_ 73 
Star wort_ 55 
Steerhead_ 64 
Stickleaf_ 88 
Stickseed_ 105 
Sticky currant_ 72 
geranium_ 82 
Stonecrop_ 69 
Strawberry_ 73 
American_ 75 
blight_ 53 
Sugarbowl_ 60 
Sulphur eriogonum_ 49 
Sumac family___ 85 
lemonade_ 85 
Sumpweed_ 128 
Sundew family_ 69 
narrowleaf_ 69 
Sunflower_ 130 
common_ 130 
prairie_ 130 
Sweet evening-primrose_ 93 
white violet_ 87 
Sweetberry honeysuckle_ 115 
Page 
100 
41 
97 
85 
26 
19 
77 
78 
73 
77 
77 
78 
65 
37 
36 
19 
90 
53 
97 
33 
133 
133 
133 
133 
133 
47 
53 
55 
46 
78 
71 
69 
86 
19 
36 
36 
35 
21 
21 
108 
135 
78 
78 
50 
67 
99 
99 
74 
38 
96 
80 
