Chondrilla COMPOSITAE Sonchus 



Chondrilla L. 



. juncea L. Skeleton-weed. 



Rather frequent, and abundant where it occurs, in dry, sandy- 

 fields, from Worcester County northward to central New Castle 

 County. Late June to Aug. Nat. from Europe. 



^: 



Taraxacum Ludwig. Dandelion. 



See Fernald: Rhodora 35, 369-383. 1933. 



T. palustre (Lyons) Lam. & DC. var. vulgare (Lam.) Fern. (T. 

 officinale Weber.) Common Dandelion. 



Common weed in open ground, practically throughout our area. 

 April to late autumn. Nat. from Europe. 



T. laevigatum (Willd.) DC. (T. erythrospermum Andrz.) Red- 

 seeded Dandelion. 



Infrequent; fields and roadsides of the Piedmont; rare on the 

 Coastal Plain: roadside, Choptank Mills (K), Otis, 15 May 1924 

 (A). Nat. from Europe. 



Sonchus L. Sow Thistle. 

 S. arvensis L. 



Rare in our area: edge of marsh, Wilmington, Commons, 16 Oct. 

 1900 (A) ; ditch bank 4 mi. n. w. of Easton (Ta), Earle, 3399, 5 July 

 1941 (P) 



Var. glabrescens (Guenth.) Grab. & Wimm. (S. uliginosus 

 Bieb.) 



Infrequent, in fields and on serpentine soil. New Castle and 

 Cecil Counties. Mid-July to Sept. Introd. from Europe. 



i^S. oleraceus L. 



Infrequent in waste places about Wilmington; also, roadside, 

 Chincoteague Island (Ac), True, 27 June 1928 (P). Nat. from 

 Europe. ^^ u j>S> r _^ 



S. asper (L.) Hill. Spiny-leaved Sow Thistle. 



Rather frequent, about Wilmington, and southward to Accomac 

 County, in fields, waste ground, and sands of the seashore. May 

 to July. Nat. from Europe. 



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