![]() Achillea millefolium |
![]() Ambrosia artemisiifolia |
![]() Aster laevis |
![]() Bromus inermis |
![]() Coreopsis palmata |
![]() Helianthus annuus |
![]() Panicum virgatum |
![]() Polygonum pensylvanicum |
![]() Polygonum pensylvanicum2 |
![]() Silphium integrifolium |
Root |
Updated Oct 17, 2006 | Peter Chen |