Di. 
Polygonum aviculare L. Smartweed 
Ivy Neck. One station: unpaved road to abandoned wheatfield. 
Hectare 4740. Associated with Diodia teres, Lespedeza stipulacea, 
Polygonum pensylvanicum, Cyperus strigosus. Higman 1059. 
P. sagittatum L. Smartweed 
Java Farm. Two stations: freshwater part of Fox Creek marsh 
(associated with Aster puniceus, Lycopus virginicus, Leersia oryzoides, 
Solidago graminifolia, Impatiens capensis), and in marshy western end 
of Phalaris arundinacea meadow north of main buildings (associated with 
Polygonum punctatum, P. pensylvanicum, Scirpus rubricosus). Higman 152. 
P. arifolium L. Smartweed 
Java Farm. One station: low bank of Muddy Creek, adjacent to 
west end of meadow above. Hectare 2467. Canopy of Platanus occidentalis, 
Fagus grandifolia, Liriodendron tulipifera. Understory of Lindera 
benzoin, Cornus florida. Higman 1055. 
P. pensylvanicum L. Smartweed 
Java Farm. One station: large clump at marshy western end of 
Phalaris arundinacea meadow north of main buildings. Hectare 2467. 
Associates: see P. sagittatum above. 
Ivy Neck. Infrequent in open fields, unpaved roads. Associated 
with Strophostyles umbellata, Desmodium perplexum, Lespedeza stipulacea, 
Oenothera biennis. Higman 151, 1023, 1123, 1124. 
P. hydropiperoides Michx., 
forma leucochranthum A. H. Moore 
(form not in Britton and Brown) Smartweed 
Java Farm. One station: border of salt marsh at upstream end of 
tidal portion of Muddy Creek. Hectare 3403. Associated with Mikania 
scandens, Pluchea camphorata, Lobelia cardinalis, Hibiscus palustris, 
Typha latifolia. Higman 80. 
P. punctatum Ell. Smartweed 
Java Farm. Infrequent in fresh and brackish marshes. Stations 
in Hog Island salt marsh, muddy shore of tidal portion of Muddy Creek, 
in Fox Point salt marsh, and at marshy west end of Phalaris arundinacea 
meadow north of main buildings. 
Associates in freshwater marsh: see P. sagittatum above. 
Associates in salt marshes: Aster puniceus, Atriplex patula, 
Scirpus americanus, Distichlis spicata, Kosteletzkya virginica. 
Higman 58, 153, 449, 990, 1245. 
