Artemisia. LXXV. COMPOSIT^E. 349 



.3. C. RENIPORMIS. Muhl, 



St. sulcate-angled ; Ivs. palmately veined, nearly smooth, green both sides, 

 petiolate, lower ones reniform, upper flabelliform ; corymb compound, fastigiate ; 

 hds. 5-flowered.— Woods la. ! 111., Penn., S. to Car. Stem 3— 6f high, nearly 

 simple, glabrous. Leaves 3 — 12' by 5 — 18', repand-dentate, lower petioles very 

 long. Scales of involucre 5, obtuse, whitish. July. 



4. C. TUBEROSA, Nutt, 



6'/;. angular-sulcate; Ivs. oval or ovate, strongly 5 — 7- veined, obtuse or 

 subacute, entire or repand-denticulate, not glaucous, lower ones tapering into 

 long petioles, upper ones on short petioles ; /ids. in compound corymbs. — Marsh- 

 es, Western States ! Stem 2 — 5f high, branched above. Leaves rather thick, 

 3 — 7' long, § as wide, veined like those of the plantain. Heads oblong, 5-leaved 

 and 5-flowered, white. May — Jl. 



5. C. cocciNEA. Curt. (Emilia sagittata. DC.) Scarlet Cacalia. Tassel 

 Flov:er. — Radical Ivs. ovate-spatulate, cauline amplexicaul, crenate; invol. 

 ovate-cylindric, scales linear, at length reflexed ; ach. ciliate ; pappus in several 

 rows. — A pretty garden flower, native of the E. Indies, &c. Stem If or more 

 high. Flowers bright scarlet. Jn. — Sept. A bed or patch sown thickly makes 

 a fine appearance. 



52. ARTEMISIA. 



Probably from Artemis, one of the names of the goddess Diana. 



Involucre ovoid, imbricate, with dry, connivent scales ; receptacle 

 naked or subvillous ; disk flowers numerous, $ , tubular, ray flowers 

 few, often without stamens, and with a subulate corolla or ; acbe- 

 nia with a small disk ; pappus 0. — Bitter herbs. Lvs. alternate. Cor. 

 yellow. 



§ 1. Receptacle naked. Disk flowers sterile. 



1. A. Dracunculus. Tar agon. — Lvs. smooth, lanceolate, acuminate at each 

 end ; hds. subglobose, pedunculate, erect. — A culinary herb, native of S. Eu- 

 rope. Stem herbaceous, 2— 3f high. Jl. Aug.— It is of the easiest culture, and 

 is used for pickles, salad, and for seasoning soup. X 



2. A. DRACUNCULoiDES. Ph. (A. cernua. Nutt.) 



Erect, much branched, whitish pubescent when young ; loicer lvs. 3-cleft, 

 upper entire, narrowly linear, attenuated at both ends ; hds. globose, small, nod- 

 ding, pedicellate, in paniculate racemes; scales with scarious margins. — St. 

 Louis, Mo. to the Sask'atchawan. Stem shrubby, 6~8f high, with numerous 

 slender branches. Leaves 1—4' by 1—3", radical trifid or sometimes 2 or 3 

 times trifid. 



3. A. BOREALis. Pallas. (A. spithamaea. Ph.) 



Caespilose, silky-villose or smoothish ; 5^. simple (6—10' high); lower lvs. 

 petiolate, linear-lanceolate, entire towards the base, ternately, pinnately or bi- 

 pinnately parted above, with linear lobes, upper lvs. linear, 3 — 5-clei't or entire ; 

 hds. hemispherical, spicate or racemose-paniculate.— Keweena Point, Lake Su- 

 perior. Dr. Houfrhton in T. & G. Fl. ii. 417. 



4. A. Canadensis. Michx. Sea Wormwood. 



St. erect or decumbent; lvs. pinnatifid with linear segments; fls. subglo- 

 bose, sessile, in crowded panicles resembling spikes. — % Shores of the great 

 lakes. Plum Island, Bigelmo. Near Amherst College, Hitchcock. Willoughby 

 Mt., Vt., Wood. Stem 2 — 4f high, much branched, sulcate, brownish, mostly 

 erect. Leaves all much divided into linear-setaceous segments. Heads nume- 

 rous, small, forming a large panicle of racemes. Scales with a membranous 

 margin. Aug. 



5. A. caudata. Michx. 



St. herbaceous, simple, densely and pyramidally paniculate; radical and 

 Unicer cauline lvs. subbipinnnte, nubescent, njtper ones subpinnate, segments sub- 

 setaceou.s, alternate ; hds. ovoid-globose, pedicellate, erect. — On the sea coast, 

 N. H. to R. I. Stem 3 — 5f high, strict. Leaves in many attenuated and some- 



