178 
Chenopodium album L. Common Pigweed. 
Europe, Asia. 
Monolepis nuttalliana (R. & S.) Engelm. | Nuttall's Monolepis. 
Native. 
PAPAVERACEAE 
Capnoides aureum (Willd.) Kuntze. Golden Corydalis. 
Native. 
BRASSIACEAE 
Lepidium ramosissimum A. Nels. Pepper Grass. 
Native. 
Lepidium densiflorum Schrad. | Apetalous Pepper Grass. 
Europe. 
Bursa Bursa-pastoris (L.) Britton. Common Shepherd's Purse. 
Europe, thence now cosmopolitan. 
Roripa sinuata. (Nutt.) A. S. Hitch. Spreading Yellow Cress. 
Native. (Probably introduced from lower altitudes.) 
Brassica arvensis (L.) B.S.P. Wild Mustard. 
Europe. 
CAPPARIDACEAE 
Peritoma serrulatum (Pursh) DC. Rocky Mountain Bee Plant. 
Native. (Introduced from lower altitudes. Probably does 
not mature seeds.) 
ROSACEAE 
Rubus strigosus Michx. Raspberry. 
Native. 
Potentilla monspeliensis L. Rough Cinquefoil. 
Native. 
Potentilla pennsylvanica strigosa Pursh. Villous Pennsylvania 
Cinquefoil. Native. 
Fragaria glauca (S. Wats.) Rydb. Glaucous Strawberry. 
Native. 
FABACEAE 
Trifolium pratense L. Red Clover. 
Europe and Asia, thence cultivated and naturalized in all 
temperate lands. 
