|  | Mean inhibition zone diametera | |||
---|---|---|---|---|---|
 |  | Gram-negative organisms | Gram-positive organisms | ||
Plant Species | Portionb | E. coli (PI No.336) | S. typhimurium (PI No.381) | S. aureus (PI No.4651) | S. lactis (PI No.525) |
Haudenosaunee medicinal plants | |||||
A. millefolium | FL | ------ | 8.8 | 9.6 | ------ |
H. pilosella | FL | ------ | ------ | 8.1 | ------ |
 | LV | ------ | ------ | 9.0 | ------ |
 | ST | ------ | 9.1 | ------ | ------ |
I. pandurata | FL | ------ | ------ | 7.3 | ------ |
 | LV | 10.2 | 11.1 | 15.8 | 12.3 |
S. canadensis | LV | ------ | ------ | 9.3 | ------ |
Plants with no known medicinal use by Haudenosaunee | |||||
S. virginica | LV | ------ | ------ | 7.9 | ------ |
H. matronalis | ST | ------ | 11.1 | ------ | ------ |
R. multiflora | FL | 9.0 | 8.1 | ------ | ------ |
 | LV | 7.6 | ------ | ------ | ------ |
Ampicillin (10 mg/mL) | Â | 35.0 | 29.6 | 37.9 | 33.2 |
Water | Â | ------ | ------ | ------ | ------ |