Table 3. Invading flowering plants to the experimental planting at 

 Duck, June and September 1974. 



Name 



Growth 

 form 



Abundance 



Month 

 recorded 











Ambrosia artemisiifolia L. (ragweed) 



herb 



infrequent 



Sept. 





Carex sp. 



sedge 



rare 



June 





Cenchrus tribuloides L. (sand spur) 



grass 



abundant 



June, 



Sept. 



Chenoipodium ambrosioides L. (Mexican- 

 tea) 



herb 



rare 



Sept. 





Cypevus iria L. (rice flatsedge) 



sedge 



rare 



Sept. 





Digitavia filiformis (L.) Koeler 

 (slender fingergrass) 



grass 



infrequent 



Sept. 





Diodia teres Walt, (buttonweed) 



herb 



abundant 



June, 



Sept. 



Erigeron canadensis L. (horseweed) 



herb 



infrequent 



June, 



Sept. 



Euphorbia poly goni folia L. (seaside 

 spurge) 



herb 



common 



Sept. 





Ghaphalium obtusi folium L. (rabbit 

 tobacco) 



herb 



infrequent 



June, 



Sept. 



Myrica pensylvanica Loisel. (bayberry) 



shrub 



rare 



June, 



Sept. 



Oenothera humifusa Nutt. (evening 

 primrose) 



herb 



abundant 



June, 



Sept. 



Paniaum amarulum Hitchc. ^ Chase 

 (shoredune panicum) 



grass 



common 



June, 



Sept. 



Physalis visoosa ssp. maritima 



(M. A. Curtis) Waterfall (ground 

 cherry) 



herb 



infrequent 



June, 



Sept. 



Spartina patens (Ait.) Muhl. 

 (saltmeadow cordgrass) 



grass 



rare 



June, 



Sept. 



Triplasis purpurea (Walt.) Chapm. 

 (purple sandgrass) 



grass 



abundant 



June, 



Sept. 



1. Scale of abundance from most to least abundant: abundant, common, 

 infrequent, rare. 



22 



