Baptisia australis
Brochymena
Campanula americana
Eupatorium purpureum
Euphorbia corollata
Hystrix patula
Maclura pomifera
Ratibida pinnata
Rudbeckia subtomentosa
Sambucus canadensis
Tilia americana
Verbascum thapsus
 Root 
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Updated Jul 19, 2012 |  Peter Chen |