COMPOSITAE 149 



the upper leaves entire. Heads of flowers ovoid, nodding or finally erect; involu- 

 cre hoary-tomentose. 

 Hob. Gardens, and waste places: Native of Europe. Fl. Aug. Fr. Sept 



Obs. Introduced, and naturalized, in a few localities. 

 2 2. Receptacle hairy ; stem suffruticose. 



4. A. ABSINTHIUM, L. Silky-hoary; leaves bipinnatifid, the seg- 

 ments lance-oblong, obtuse ; heads in leafy paniculate racemes. 

 DISAGREEABLE ARTEMISIA. Worm-wood. 



Plant hoary with a short and rather dense silky pubescence. Stems 2 to 4 feet 

 high, numerous from the root, angular, branching above. Leaves half an inch to 

 2 inches long ; petioles about as long as the leaves. Heads of flowers hemispheri- 

 cal, numerous. Akenes obconic-oblong. Receptacle very hairy. 

 Hob. Gardens. Nat. of Europe. FL Aug. Fr. Sept. 



Obs. This plant proverbial for its bitterness is kept in many 

 gardens, for its medicinal properties. 



SUBTBIBE 5. GNAPHALIN'EAE. 



Heads all discoid, sometimes diaicous ; involucral scales mostly dry and scarious ; 

 pistillate florets with filiform corolla ; anthers with tails at base; pappus hair-like, 

 or bristly. Floccose-woolly herbs ; leaves alternate. 



213. GtfAPHAXIUM, L. 



[ Or. Gnaphalon, soft down, or wool ; with which the plants are clothed.] 

 Heads many-flowered ; central florets perfect; marginal ones pistil- 

 late, very slender, in several series. Akenes obovoid-oblong ; pap- 

 pus capillary, in a single series. Receptacle flat, naked. Leaves 

 sessile, sometimes decurrent, entire ; heads clustered, or corymbed. 



1. O. polyceplialimi , MX. Stem erect, paniculate ; leaves 

 linear-lanceolate, naked and green above, woolly beneath; heads 

 ochroleuoous. 



MANY-HEADED GNAPHALIUM. Life-everlasting. 



Annual. Stem, 1 to 2 feet high, paniculately branched above. Leaves 1 to 3 in- 

 ches long, somewhat wavy on the margins. Heads of flowers rather small, nu- 

 merous, ovoid-oblong, in dense sub-corymbose clusters at the summits of the 

 branches ; florets yellowish, very fragrant. 

 Hob. Old fields, and pastures : common. Fl. Aug. Fr. Octo. 



2. O. llligindsum, L. Stem low, diffusely branched; leaves 

 sublinear, woolly on both sides; heads yellowish-tawny. 



MIRE, OR MARSH GNAPHALIUM. Marsh Cud- weed. 



Annual: plant ash-colored. Stem 3 or 4 to 6 or 8 inches high, bushy or much 

 branched from the base, leafy and very woolly. Leaves about an inch long. 

 Heo.ds of flowers small, in dense clusters in the bosom of the leaves at the summit 

 of the branches ; involucre very woolly at base. 

 Hob. Low grounds ; exsiccated ponds, &c. : frequent. Fl. July. Fr. Aug. 



3. O. piirptlrcum, L. Stem simple ; leaves oblong-spatulate, 

 rather obtuse, green above, white and woolly beneath ; heads pur- 

 plish-tawny, or leaden color. 



PURPLE GNAPHALIUM. 



Perennial? plant bluish leaden color. Stem 6 to 12 or 15 inches high. Leaves 

 % of an inch to an inch and a half long, the upper surface somewhat lanuginous, 



