72 



P. virgata. Si^Ender Ratti,esxake-root. DeWitt's 

 Snakeroot. 



PYRRHOPAPPUS. 

 P. Carolinianus. Fai^se DandeIvIOn. 



SONCHUS. Sow THISTI.E. 



S. arvense. F1E1.D Sow-thisti,e. Corn sow- 

 thistle, tree sow-thistle, swine sow-thistle, milk-thistle 

 goutweed, — dindle. 



S. asper. Spiny-i^eaved Sow-thisti,e. 



S. oleraceiis. Annuai, Sow-thistle. Hare's let- 

 tuce, hare's colewort, hare's thistle, milk-thistle, milk- 

 weed, — milky-tassel, swinies.. 



TARAXACUM. Dandelion. 



T. erythrospcrininn. Red-seEded Dandelion. 

 T. officinale. Common Dandelion. 



TRAGOPOGON. Goat^s-beard. 



T. porrifolius. Vegetable Oyster. Salsify, oys- 

 ter plant, purple goat's-beard, oyster-root, nap-at-noon, 

 Jerusalem-star. 



T. pratensis. Goat's-beard. Meadow salsify, yel- 

 low goat's-beard, buck's-beard, star-of-Jerusalem, 

 noon-tide, noon-flower, go-to-bed-at-noon, Joseph's 

 flower. 



ASTERACEAE. Asterworts. 



ACHILLEA. Yarrow. Milfoil. 

 A. borealis. Wild Tansy. 

 4. millefoliiim. Common Yarrow. Milfoil, nose- 



