52 



9. Wild Ginger or Canada Snakeroot {Asarum Canadense L.) grows 

 in woods. 



*10. Yellow Dock or Curled Dock {Rumex crispus L.) and 



*11. Broad-leaved Dock (Rumex obiusifolius L.) are common weeds 

 of cultivated ground. 



*12. Blue Cohosh or Papoose Root (Caulophyllum thalictroides Michx.) 

 grows in woods. 



*13. May Apple or Wild Mandrake (Podophyllum peltatum L.) occurs 

 in heavy soil in open woods. 



14. Bloodroot (Sanguinaria canadensis L.) occurs in rich woods. 



*15. Seneca Snakeroot or Mountain Flax (Polygala Senega L.) grows 

 in rocky woods. 



16. Spotted Cranesbill or Alum Root (Geranium maculatum L.) occurs 

 in open woods and in fields. 



*17. American Ginseng (Panax Quinquefolium L.) occurs in woods. 



18. Wild Sarsaparilla (Aralia nudicaulis L.) and 



19. American Spikenard (A. racemosa L.) grow in woods. 



20. Purple-stemmed Angelica (Angelica atropurpurea L.) grows in 

 swamps and moist ground. 



21. Black Indian Hemp (Apocynum cannabiniim L.) occurs in gravelly 

 or sandy soil mostly near streams. 



22. Culver's Root (Leptandra virginica Nutt.) grows in meadows and 

 moist woods. 



*23. Dandelion (Taraxacum officinale W^eber) is a common weed in 

 cultivated ground. 



*24. Great Burdock (Arctium Lappa L.) grows as a weed on waste 

 ground. The fruits are also used. 



25. Elecampane (Inula Helenium L.) occurs as a weed in fields and 

 on roadsides. 



II. Plants Whose Bark is Used. 



26. W^hite Pine (Pinus strobus L.) is a common tree. Only the inner 

 bark is used. 



27. Butternut (Juglans cinerea L.) occurs in rocky ground. The bark 

 of the root only is used. 



28. Sweet Birch (Betula Lenta L.) grows in gravelly or sandy soil. 

 *29. Slippery Elm or Red Elm ( Ulmus fulva Michx.) grows in rich 



soil. Only the inner bark is used. 



