Scorpiurus LEGUMINOSAE Desmodium 



Scorpiurus L. 

 S. muricatus Willd. 



A waif from the Mediterranean, collected on the south bank of 

 Christiana Creek at Wilmington, probably on ships' ballast, by 

 Ziba Ferris, June 1843 (D). 



Desmodium Desv. Tick Trefoil. 

 D. nudifiorum (L.) DC. 



Frequent in rocky woods of the Piedmont; infrequent in dry 

 woods of the Coastal Plain, southward at least to Talbot County: 

 1% mi. s. s. e. of Easton (Ta), Earle, 3083, 4 Sept. 1940 (P). July 

 to Sept. 



D. acuminatum (Mx.) DC. {D. grandiflorum (Walt.) DC.) 



Rare; rich or sandy woods: near Centreville (NC), Commons, 16 

 Sept. 1877 (A); Townsend (NC), Canhy, 5 Oct. 1896 (D). July. 



D. pauciflorum (Nutt.) DC. 



Rare, in rocky woods of the Piedmont : Conowingo, J. J. Carter, 

 19 Aug. 1906 (A). July. 



D. rotundifolium (Mx.) DC. {Meibomia Michauxii Vail.) 



Infrequent in dry woods of northern New Castle County, and 

 southward in sandy pine woods of the Coastal Plain to Wicomico 

 County: near Sharptown (Wi), Otis, 19 Aug. 1915 (D). Late July 

 to early Sept. 



D. ochroleucum M. A. Curtis. 



Rare, in woods of the Coastal Plain: Public Landing (Wo), 

 Canhy, Sept. 1873 (A); Felton (K), Commons, 1 Sept. 1882 (A); 

 Cape Charles City (No), Canhy, Aug. 1894 (D, A). Aug. 



D. humifusum Beck. (D. glabellum (Mx.) DC.) 



Rare, in sandy soil: edge of field 1 mi. n. of Salisbury (Wi), 

 Canhy, 10 Sept. 1865 (A); dry hills along Red Clay Creek (NC), 

 Canhy, Sept. 1894 (D). 



D. canescens (L.) DC. 



Frequent in thickets and borders of woods of the Piedmont area; 

 infrequent southward on the Coastal Plain. Mid-July, Aug, 



D. bracteosum (Mx.) DC. 



Infrequent in rich, rocky woods of the Piedmont; one collection 



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