160 FLORA OF WJNNESHIKK COUNTY. 



and glabi um i. Blue grass i Poa pratensis) is often a persistent 

 weed. The less pernicious, or less abundant, introduced 

 are: the panic grasses '• . capillars and 



dichotomum), the foi tail j Setaria flauca and i 



/ major, both kinds of che u an«i 



irchard gn I - John's- 



wort {Hypericum perforatum), lamb 'a quartei podium 



album), hedge mustard (Sisyroortttwi officinale), false flax 



Una), low hop clo\ KiiM pro< 



Borrel (J?wmej ocetoseUa), patience dock (J?, patientia), lius- 



.sian thistle {Salsola), mullein | I |, -j dwell I I 



hemp ( Cannabis), black nightshade (Solatium 

 ii'uiriiiu), ground cherrj (Physalii motherwort 



i, chicory (Ctcfcortwm), tansy (TVznacefum) and bow- 

 thistle i >"/" fens). 



following native weeds are more or les> troublesome: 

 Bquirrel-taiJ grass (I?ordet*m), wire grass 

 water 'lock (fiumi c hnttanica), smart-weed (Polygonum penn- 

 sylvanicum), pepper-grass (Lepidium virginicum), partridge- 

 • chamaecrista) , white clover (Tri/oftum n . 

 -ceded mercury | .1. alypha ), the native spurge- (Eupfcor- 

 i> /« ) , velvet-leaf < Ahutilnn), yellow oxalis (Oxalis stricta), even- 

 ing primrose (Onagra biennis), milkweed (Asclepia 

 the dodders (<7uscu*a), nyctelea (Macrocalyx), beggar's lice 

 (Lappula), the verbenas (FerbeHfl) both species of 8cropku- 

 laria, Etugel's plantain (Plantago rugeli), slender nettle (UrHoa 

 gracilis), bur-weed marsh-elder (Iva), both ragweeds (Artem- 

 isia trifida and artemisae folia), cocklebur (Xanthium), horse- 

 weed {LeptUon), daisy flea-bane >. tall cone- 

 flower [Rudb'eckia laciniata), Beyeral species of sunflowers 

 i II, lianthus annuus, rigidus, etc 8] 

 /. and fire we id I Era ktih ?)■ -1/ /*/'/» " 

 ma Bometimes becomes a weed, and the Band-bur (Cen- 

 ts often troublesome in sandy fields. For additional 



•l all these Bpecies Bee the annotated list. 



Individual eflfort avails but little in the conflict with w Is, 



Until concerted systomatio and intelligent action is taken 



againsl them men will continue to Buffer - from this 



source. Fire, the plow, and the Bcythe or mower are the 



