Chironia campanulata and other sp.
Chrysogonum virginicum
Cimicifuga pulmata
Circea lutetiana
Cissampelos smilacine
Claytonia virginica
Commelina erecta, longifolia virginica
Convallaria multiflora and racemosa
Conyza linifolia
Coreopsis auriculata, bidens, senifolia, tripteris, alternifolia and verticillata