HELIANTHUS 



la America the Sunflower imlustry may be said 

 have hardly i-oramenced, there being at present hut U 

 well-developed markets for the seed. jj, (j, Kains. 



HELIANTHUS 



721 



petioled. 

 B. Bisk brown or purplish. 



c. Lvs. linear, entire {except 



laetiflorus 

 CaliJornicus 

 hirsutus 

 trachelifolius 



1. dnnuus, Linn. Common Su^ 

 ft., rough-hairy, often mottled : lvs. 4-12 in. Ion 

 broadly ovate, acute, the lower cordate, coarsely sernit 

 rough on both sides: ris.:!-Ci in. wide in wild speinmen 

 often 14 in cult, ■\u\^ --■■,^:. .M;nii. to Tc-.x,. wist 

 Wash. and Cal. (Ill, i- ' i,;. ,.. '.i,") (as //. A »?/r 



laris). B.R.lorlJi: . ''.-,■, m.- A vi.lual. 



lvs. 



for 



fodder, the fls. yield a yt-llow dye, the seeds furnish an 

 oil and aroused for food. It is grown for food chiefly in 

 Russia. H. annnus has long been in cult, as an orna- 

 mental, and has varied into many distinct forms. Com- 

 mon varietiesare: V:ir. Califdmicus, very large and 

 double; var. citrinug, with primrose-colored rays ((.In. 

 49,p. 327i; var. globdsus fistuldsus, having enormous 

 globular heads; var. ninus fl. pl.(Globe of Gold), dwarf 

 and double, valuable for borders ; Eussian Giant, 

 10-12 ft. high, single, grown mostly for seed; var.varie- 

 gfttus, with variegated lvs., but not especially attrac- 



argophyllus, Torr. & Gray. Silveuy-leaved Scn- 

 Stem usually 4-5 ft. high, soft grey, with a 

 dense, silky pubescence, esppcially the upprr branches. 

 Otherwise "liki- //. <iiniuns. into which it snins to vary 

 under cultivaii.m if iIm- s.r.llin-s .-ii.- ii..t constantly 

 selected fur tloir silkv .•liinan,-,-. 'I'rxas. The var. 

 Texiina, Hort.,\vlii.-l, .io.s i,oi .ihv,,- liotanically from 



the tvpe. is an attian; , i. • liils species. R. H. 



1857,p.431. Gn.l2,p,-- , .,,;-: .-:,,p.l47. 

 3. d^bilis, Nntt. (//. , Torr. & Gray). 



Cl'CUMBEK-LEAVED i^LM L' V I 1^. 1,4. Ul2(i. St. 1-4 ft. 



high, hairy throughout : l.iranclies ut'teu mottled with 

 purple or white, each one bearing a fl. : lvs. 1-4 in. long, 

 ovate to triangular, generally with a cordate base, thin, 

 glossy, irregularly toothed or entire: fls. 2-3 in. wide, 

 on slender peduncles. July-Sept. Fla. to Texas and 

 westward. G.C. III. 17:167. Gt. 44, p. 571. B.M. 7432. 

 Gn. 49:1064. -This is one of the best for cut-fls. It 

 needs a sandy soil. 



4ji 



* 



'^ 



:,c-0i§^'^ 



1027. Clump of Helianthus oreyalis. 



4. orgyalis, DC. Fig. 1027. Stem 8-10 ft. high, strict, 

 smooth, very leafy: lvs. 8-lfi in. long, slightly rough, 

 drooping : fls. numerous, lemon-yellow. Sept., Oct. 

 Dry plains. Neb. to Tex. and westward. Gn. 27, p. 67; 

 55, p. 147. F.R. 2:146. -This species has distinct and 



