305] FLORA OF COLUMBIA AND VICINITY 165- 



551. D. bracteosum (Michx.) DC. [Z). cuspidatitm Hook.: 

 M. bracteosa (Michx.) Kuntze]. 



Common in oak thickets and open woods. 

 Ontario to Michigan and Minnesota; Florida to Texas 

 and Missouri. 



552. D. longifolium (T. & G.) Daniels [Af. longifolia (T^ 

 & G.) Vail]. 



Open wild meadows and along roadsides. 

 Illinois to Missouri; Alabama to Louisiana. 



553. D. paniculatum (L.) DC. \M . paniczdata (L.) Kuntze J. 

 Very common in oak openings. 



Massachusetts and Ontario to Minnesota and Nebraska; 

 Florida to Texas. 



554. D. pubens (T. & G.) Young \^M . pmiicidata piibens 



(T. & G.) Vail]. 

 Dry oak forests and thickets 



Virginia to Missouri and the Indian Territory; Florida 

 to Texas. 



555. D. viridiflorum (L.) Beck. [M. viridiflora (L.) Kuntze], 

 Oak woodlands; scarce. 



New York to Michigan; Florida to Texas and Missouri. 



556. D. Dillenii Darl. \M. Dillcnii {D^rX.) Kuntze]. 

 Oak woods and thickets. 



Maine and Ontario to Minnesota; Virginia to Missouri 

 and Texas. 



557. D. lUinoense Gray [J/. Illiiwensis (Gray) Kuntze]. 

 Open grounds and wild meadows. 



Michigan to South Dakota and Texas. 



558. D. Canadense (L.) DC. \A'I. Canadensis (L.) Kuntze]. 



Showy tick-trefoil. 

 Frequent on banks and in open thickets. 

 New Brunswick to Saskatchewan; North Carolina to 

 the Indian Territory. 



