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Pluchea Adorala. Cass, (pluchea.) A shrub four to six 

 feet high, branched from base, the branchlets clothed with 

 rusty, woolly down. L/caves oblong, pointed, woolly beneath. 

 Flower-heads branched, compact, numerous. Flowers pinkish, 

 one-third inch. Found in old quarries and at foot of dry walls. 

 February to May. 



Pluchea Camphorata. D. C. (marsh fleabane, ) A fleshy 

 plant with erect stem, one to one and a half feet high, branch- 

 ed and clothed with short viscid hairs. Ivcaves two to three 

 inches long, scarcely stalked, the lower ones sharply toothed, 

 the upper ones entire. Flowers purple, crowded with small 

 red hairs or bristles. Not common. Marshes. Annual. This 

 is evidently L/efroy's P. purpurascens. Annual. 



Parthenium Hysterophorus. ly i n n. (parthenium. ) An 

 erect plant, one to two feet high. Stem rather hoary, grooved. 

 I/caves divided half-way, one to one and half inch long. 

 Flower bracts numerous, on branchlets. Flowers quarter of 

 an inch across, white with a transparent look. Common on dry 

 walls and waysides. Summer months. Annual, 



Tanacepum Vulgare. (common tansey. ) A ragged foliaged 

 plant two feet high, with yellow blossoms. Mostly found 

 around country cottages from which there are escapes in the 

 vicinity. Greatly used as a tonic. Perennial. Summer. 



Pyrethrum Parthenium. (fever few. ) A low-growing plant 

 with grey leaves, deeply cut. Flowers yellowish-white. Used 

 as a tonic. It is an escape like the above. 



Ambrosia Artemisiaefolia. (hog weed.) A plant with a 

 stout, erect stem, one to three feet high, branched. Ivcaf stalks 

 fringed with slender hairs. L/caves twice-divided or pinnatifid, 

 two and a half inches long. Flower stalks slender, terminal. 

 Found on waste as well as cultivated grounds. Flowers very 

 small, greenish, with yellow stamens. May to September. 

 Annual. Often mistaken for "wormseed." L/cfroy mentions 

 another, probably sub-species. A. heterophylla. 



Xanthium Echinatum. Murr. (cockle burr.) A common 

 noxious weed on roadsides and waste land, thus described by 

 Sir Joseph Hooker; " A rank weed-like plant remarkable for 



