Number of identified higher plants: 112
State-listed plant (Watch-Listed): Lycopus amplectens (pondshore water-horehound)
A species listed 'Historic' in Massachusetts may be present in Savery Pond: Lemna valdiviana (Valdivia or pale duckweed).
Gradations of rarity used by NHESP in Massachusetts: Historic─Endangered─Threatened─Special Concern─Watch-Listed. The latter category is assigned to plants whose distribution in the state is not yet sufficiently known and that may prove to be rare upon accumulating data.