| Acalypha | Acalypha gracilens Gray | slender threeseed mercury | ME | NH | VT | MA | CT | RI |
| Acalypha virginica L. var. rhomboidea (Raf.) Cooperrider | Virginia threeseed mercury | ME | NH | VT | MA | CT | RI | |
| Chamaesyce | Chamaesyce glyptosperma (Engelm.) Small | ribseed sandmat | ME | NH | VT | MA | ||
| Chamaesyce maculata (L.) Small | spotted sandmat | ME | NH | VT | MA | CT | RI | |
| Chamaesyce polygonifolia (L.) Small | seaside sandmat | ME | NH | VT | MA | CT | RI | |
| Chamaesyce prostrata (Ait.) Small | prostrate sandmat | ME | VT | MA | ||||
| Chamaesyce vermiculata (Raf.) House | wormseed sandmat | ME | NH | VT | MA | CT | RI | |
| Croton | Croton capitatus Michx. | hogwort | MA | |||||
| Croton texensis (Klotzsch) Muell.-Arg. | Texas croton | MA | ||||||
| Croton willdenowii G.L. Webster | Willdenow's croton | CT | ||||||
| Euphorbia | Euphorbia corollata L. | flowering spurge | ME | NH | VT | MA | CT | RI |
| Euphorbia cyparissias L. | cypress spurge | ME | NH | VT | MA | CT | RI | |
| Euphorbia dentata Michx. | toothed spurge | ME | NH | VT | MA | RI | ||
| Euphorbia esula L. | wolf's milk | ME | NH | VT | MA | CT | ||
| Euphorbia helioscopia L. | madwoman's milk | ME | NH | VT | MA | CT | ||
| Euphorbia lathyris L. | moleplant | ME | VT | CT | ||||
| Euphorbia marginata Pursh | snow on the mountain | ME | NH | VT | MA | CT | RI | |
| Euphorbia peplus L. | petty spurge | ME | NH | VT | MA | |||
| Euphorbia platyphyllos L. | broadleaf spurge | ME | VT | MA | ||||
| Mercurialis | Mercurialis annua L. | annual mercury | MA | |||||
| Ricinus | Ricinus communis L. | castorbean | NH | MA | CT |
Last Update: 1/4/97
Name: Ray Phillips
Email: rbphilli@Colby.edu