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ASCLEPIADACEAE 
Asclepias [Tourn.] L. Milkweed. Silkweed. 
tuberosa L. Butterfly-weed. Pleurisy-root. 
purpurascens L. Purple Milkweed. 
incarnata L. Swamp Milkweed. 
incarnata L. var. pulchra (Ehrh.) Pers. Springfield, L. Andrews. 
cannabinum L. Indian Hemp. 
syriaca L. Common Milkweed or Silkweed. 
amplexicaulis Sm. 
phytolaccoides Pursh. Poke Milkweed. 
quadrifolia Jacq. 
verticillata L. 
CONVOLVULACEAE 
Ipomoea L. Morning Glory. 
purpurea (L.) Roth. 
Convolvulus [Tourn.] L. Bindweed. 
spithamaeus L. 
JAPONICUS Thunb. Escaped from cultivation. 
sepium L. Hedge Bindweed. 
Cuscuta [Tourn.] L. Dodder. 
Epithymum Murr. Occasionally found parasitic on clover and 
alfalfa, causing “ lodging” of the host plant. In- 
troduced in clover seed, but not persisting. 
arvensis Beyrich. Occasionally affecting alfalfa and clover. 
Gronovii Willd. Common on alders, etc., but observed growing 
on raspberry bushes. 
POLEMONIACEAE 
Phlox L. 
paniculata L. Persistent and occasionally escaped. 
stolonifera Sims. Amherst, E. N. Brown. 
HYDROPHYLLACEAE 
Hydrophyllum [Tourn.] L. Waterleaf. 
virginianum L. Rare. 
