642 CICHORIACEAE 



5. Hypochaeris [Vaill.] L. 



1. H. radicata L. In waste places: Conn, to N. J. Native of 



Europe. 



Rare as a weed, often wanting. 

 H. glabra L. has been found as a waif near New York. 



6. Apargia Scop. 



Plant nearly glabrous; scape commonly branched; pappus-bristles all 



plumose. 1. A. antumnalis. 



Plant somewhat hirsute; scape simple; outer pappus of outer achenes 

 simple. 2. A. nudicaulis. 



i. A. autumnalis (L.) Hoffm. In fields and along roadsides: 

 Newf. and Ont. to N. J., Penn. and Ohio. Naturalized from 

 Europe and Asia. 



Locally abundant as a weed, often wanting. 



2. A. nudicaulis (L.) Britton. In ballast and in waste places: 



eastern seaports. Adventive from Europe. 

 Rare as an occasional weed, often wanting. 

 A. hispida (L.) Willd. (Leontodon hostile L.) has been collected as a waif in Conn. 



7. Picris L. 



Outer involucral bracts linear; achenes not beaked. I. P. hieracioides. 



Outer involucral bracts ovate, foliaceous; acenes short beaked. 2. P. echioides. 



i. P. hieracioides L. In waste places: eastern N. Am. Native 

 of Asia and Europe. 



Rare as an occasional adventive in parts of our area, often 

 wanting. 



2. P. echioides L. In waste places: N. S. and Ont. and in 



ballast about the eastern seaports. Native of Europe. 

 Rare as an adventive in parts of our area, often wanting. 



P. hispida All. has been recorded as a waif. 



8. Tragopogon [Tourn.] L. 



Flowers yellow; involucral bracts equalling or shorter than the rays. 1. T. pratensis. 

 Flowers purple; involucral bracts much longer than the rays. 2. T. porrifolius. 



1. T. pratensis L. In fields and waste places: N. B. to N. J., 

 Ont., Ohio and Man. Native of Europe. 

 Occasional as a weed, often wanting. 



