| Indigo Root - Cultivated |
November - December |
| Hydrangea Root |
January - May, November - December |
| Cramp Root Bark |
June - September |
| Witch Hazel Bark & Leaves |
June - November |
| Yam Root - wild |
January - June, September - December |
| Wild Cherry Bark - Thin, Medium, Thick |
June - September |
| White Pine Bark |
June - September |
| White Oak Bark |
June - September |
| Walnut Hulls |
November - December |
| Sumac Tree Bark |
June - September |
| Stone Root |
August - December |
| Serpentaria Root |
August - December |
| Scullcap (Blue) Herb - Cultivated |
September - October |
| Slippery Elm Bark Rosssed |
June - September |
| Soloman Seal Root |
July - December |
| Spignet Root |
August - December |
| Scullcap (Blue) Herb - Wild |
August - October |
| Saw Palmetto Berries |
October - December |
| Sassafras Select Root Bark |
June - October |
| Sassafras Natural |
June - October |
| Sassafras Tree Bark |
June - September |
| Sassafras Leaves |
August - October |
| Queen of the Meadow Root & Herb |
January - May, September - December |
| Prickly Ash Bark - Southern |
June - September |
| Prickly Ash Bark - Northern |
June - September |
| Passionflower Herb |
|
| Pacific Yew - cultivated (whole plant) |
January - June, September - December |
| Pipsissewa Herb |
August - November |
| Pleurisy Root |
September - December |
| Poke Root |
January - May, December |
| Oregon Grape Root Bark & Tree Bark |
July - December |
| Oregon Grape Root |
January - May, December |
| New Jersey Tea Leaves & Root |
August - December |
| Mullein Leaves |
August - October |
| Kansas Snake Root - Wildcrafted |
August - December |
| Goldenseal Root & Herb - wild |
August - December |
| Grindelia Herb |
August - October |
| Helonias Root (false unicorn) |
August - December |
| Indigo Root - Cultivated |
November - December |
| Lespedeza Herb |
September - October |
| Mountain Magnolia Bark |
June - August |
| Maple Bark |
June - August |
| Mayapple Root |
July - October |
| Missouri Snake Root & Herb |
August - December |
| Fringe Tree & Root Bark |
May - September |
| Blue Flag Root |
January - May, September - December |
| Bonset Herb |
October - November |
| Cascara Bark (Cascara Sagrada) |
July - October |
| Catnip Herb - Cultivated |
September - November |
| Cranesbill Root |
July - November |
| Deer Tongue Leaves |
August - November |
| Echinacea Angustifolia Root & Herb - wild |
July - December |
| Gelsemium Vine & Root |
January - June, December |
| Willow Bark |
June - September |
| Blue Cohosh |
January - May, September - December |
| Blood Root |
July - October |
| Black (Culver's) Root |
August - December |
| Black Haw Tree Bark |
June - September |
| Black Cohosh Root |
January - May, September - December |
| Beth root |
June - September |
| Bayberry Root Bark |
April - September |
| Aletris Root (star grass) |
January - May, August, October - December |
