"VYEEJDS A1\D TSEFUL PLANTS. 



Ohs. This plant vaiies very much in size, accordiDg' to tlie soil in which 

 it grows. On dry sterile banks it is very dv^arf. It has disseminated 

 itself, more or less abundantly, all over our country,— and, it is said, all 

 over Europe ; and is a worthless weed, wherever found. Good farming 

 is the mode for smothering out such intruders. 



Pappus double, the cuter rcw of minute scales; rays conspicuous, white. 



2. E. an'nnnm, Pers. Stem sparsely hirsute, corymibosely branched 

 above ; leaves coarsely and sharply dentate-serrate, — the radical and 

 lower ones ovate, obtuse, tapering into a margined petiole, — the others 

 sessile, lanceolate, acute, entire near each end ; rayvS very narrow, about 

 as long as the sparsely setose involucre. 



Annual Eeigeeon. Flea-bane. Daisy. 



i?ooi biennial? (annua-], DC). Stem 2-3 or 4 feet Ligli, rather stout, striate and often 

 angular. Hadical leaves 2-4 inches long, roughish and hairy, with narrow-margined 

 petioles nearly twice as long as the leaves ; stem-leaves gradually smaller as they ascend. 

 Heads of florets rather small ; rays white, or sometimes tinged with purple. Akenes ob- 

 long, somewhat compressed, hirsute ; pappus whitish, — the ray-florets destitute of pappus, 

 except a few short coroniform teeth at or near the summit of the akene. 



Pastures and waste places; Northern, iliddle and Western States. Fl. June -July. 

 Jr. August 



OSs. A frequent worthless weed in our pastures ; not particularly in- 

 jurious, — but conspicuous enough to attract the notice of the observing 

 farmer ; and therefore worthy to be known by him. 



3. E. strigo'snm, Muhl. Stem more or less strigosely hairy, corym- 

 bosely paniculate above ; leaves lanceolate, narrowed at base, nearly en- 

 tire, — the radical ones spatulate-lauceolate, tapering into a margined 

 petiole ; rays narrow, nearly twice as long as the minutely hispid in- 

 volucre. 



Steigose Eeigeeon. Flea-bane, Daisy. 



Boot biennial ? Stem 2-4 feet high, sulcate-striate and angular, rather slender, and ott-ea 

 sparingly branched. Leaves 1-3 inches long. HeoAs of florets rather larger than in the 

 preceding ; rays white. Ake,ies oblong, angular or ribbed, sparsely pilose : inner pappus 

 in the disk, of about 15 slender fragile and deciduous bristles ; in the ray none, or some- 

 times of one or two caducous bristles : the exterior a small setaceous-squamellate crown, 

 similar in the ray and disk." Torr. & Gr. 



Pastures and upland meadows: Canada to Florida. Fl. June -August. Fr. July- 

 September 



Ohs. This plant has a strong general resemblance to the preceding, 

 but is more conmion, — though they are usually both confounded under 

 the same popular names. This one is apt to be very abundant in the 

 first crop of our upland meadows, in Pennsylvania, after a course of grain 

 crops. After that — especially in good land — it becomes more rare,— 

 being probably choked down by the grasses. All three of the species 

 are equally worthless, unwelcome weeds. 



