MICHIGAN FLORA. 



489 



Lady's 

 Thumb. 



Common 



Smartweed.or 



Water-pepper. 



"Water Smart- 

 weed. 



Mild Water- 

 pepper. 



Water 



Persicaria. 



Water 

 Persicaria. 



Joint-weed. 



Door-weed. 



Knotgrass. 



Goose-grass. 



Erect knot- 

 grass. 



Slender Knot- 

 grass. 



Halbenl- 

 leaved Tear- 

 thumb. 



Arrow- leaved 

 Tear-thumb. 



Black Bind- 

 weed. 



Climbing 

 False Buck- 

 wheat. 



Buckwheat. 



Great Water 

 dock. 



Pale Dock. 



928. incarnatum, Ell. C. & S. 



River banks. Ionia Co.(!); Grand Rapids— Coleman Cat. Frequent. 



929. lapithifolium, Ait. TJ. P. 



L. Superior— O. B. Wheeler. 



930. Persicaria, L. (***) Th. 



Waste places. Common. 



931. Hydropiper, L. (***) Th. 



Moist grounds. Common. 



932. acre, HBK. (***) L. P. 



AVet places. Ann Arbor; Ionia Co.(!); Mackinac— Winch. Cat.; Flint. 



Frequent. 



933. hydropiperoides,' Michx. (***) C. & S. 



Wet places. Common. 



934. amphibiuin, L., var. aquaticum, Willd. Th. 



Borders of ponds. Frequent. 



935. amphibium, L., var. terrestre, Willd. C. 



E. shore L. Huron.— J. Macoun; Ionia Co.(!); Flint; Grand Rapids. 



93G. Hartwrightii, Gray. 



Kalamazoo— Tu thill. 



93?. Virgiuianuni, L. C. & S. 



Thickets. Common. 



938. articulatum, L. N. & U. P. 



Traverse City— Winch. Cat. ; L. Superior— Whitney Cat. 



939. aviculare, L. (***) Th. 



The commonest of weeds. 



940. erectum, L. 



Waste places with the preceding species. Common. 



941. ramosissimum, Michx. Th. 



Banks of streams. Infrequent. 



942. tenue, Michx. C. & S. 



Sterile soil. S. Mich.— Wright Cat. ; common in Ionia Co.(!); Macomb Co. 



943. arifolium, L. L. P. 



Low grounds. South Haven— Bailey ; Groh Cap, L. Mich.— Winch. Cat. ; S. 



Infrequent. 



Th. 



Mich— Wright Cat. 



944. sagittatum, L. 



Low grounds. 



945. Convolvulus, L. 



Waste grounds. S. W r .— Wright Cat.; Flint; Macomb Co. 



94G. cilinode, Mx. 



Copses. S. Haven— Bailey; Lyons, and northward. 



947. dumetorum, L. 



Moist thickets. 



FAGOPYRUM 



948. esculentum, Moench. 



Persistent in fields. 



RUMEX 



949. orbiculatus, Gray. 



Frequent. 

 C. & S. 

 Infrequent. 



Th. 



Common. 



Th. 



Common. 



Th. 



Wet places. S. Mich.— Winch. Cat. ; Ionia Co.(!); Flint; Macomb Co.; and 

 northward. Frequent. 



950. Britannica, L. (***) 



Sault Ste. Marie. — Winch. C.it.; and southward. 



02 



Rare. 



