SYNGENESIA—POLYGAMIA-.^QU. Soncluis. 3i3 



Corn Sow-thi.stlc. Pelic. JI. Brit. t. 14./. 6. 



In corn fields and hudges, on a clay soil. 



Perennial. August. 



Root fleshy, milky, creeping widely, with oblong, tuberous, white 

 branches, which often render it very difficult of extirpation. Stem 

 3 or 1 feet high, not much branched, round, leafy, hollow, rough 

 towards the top, with viscid, black hairs. Leaves runcinate, heart- 

 shaped, rather than arrow-shaped, at the base, and bordered 

 withlittle sharp unequal teeth, not with bristly hairs like the pre- 

 ceding ; the upper ones undivided and entire. Panicle cymose, 

 or imperfectly umbellate, rough with dark glandular hairs ; 

 sometimes it is compound and many-flowered. Cal. in like man- 

 ner hairy. Fl. deep yellow, often 2 inches wide, and very con- 

 spicuou.s J frequently reddish underneath. Tube of each Jlorel 

 hairy. Seed furrowed. Down smooth. 



4. S. oleraceus'. Common Sow-thistle. 



Flower-stalks cottony. Calyx smooth. Leaves runcinate, 

 toothed. 



5. oleraceus. Linn. Sp. PL \\\6, mUd.v.S.\D\4. Fl.Br.8\7. 

 Engl. hot. V. 12. ^843. Curt. Lond.fasc. 2. /. 58. Hook. Scot. 

 227. 



S. n. 21 y. Hall. Hist. V. 1. 10. 



S. laevis. Rail Syn. 162. Ger. Em. 292./. Matth. Valgr. v. 1. 



4o2./ Cnmer. Epit.279.f. Dod. Pempt.6A3.f. 

 S. laevis vulgaris, foliis laciniosis. Loh. Ic. 235./ 

 8. laevis, laciniatis foliis. Dalech. Hist. 572./ 

 S. laciniatus non spinosus. Bauh. Hist. r. 2. 1016./ 

 Smooth Jagged Sow-thistle. Petiv. H. Brit. t. 14./ 9 ; also f. 10. 

 (^. Sonchus oleraceus. Fl. Dan. t. 682, 

 8. n. 21 /3. Hall Hist. V. 1. 10. 

 S. laevis minor, paucioribus laciniis. Rail Syn. 163. Bauh. Pin. 



124. 

 S. Icevis latifolius. Ger. Em. 292. f. Moris, sect. 7. t. 3./ 2. 

 Smooth Broad Sow-thistle. Peiiv. H. Brit. t. 14/ 8. 

 y. Sonchus n.22 (3. Hall. Hist. v. \.\ 0. 

 S. asper laciniatus. Raii Syn. 163. 



S. as|)cra. Matth. Valgr. v. 1 . 45 1 ./ Dalech. Hist. 572. / 

 S. asperior. Ger. Em. 291./ 



I^rickly Jagged Sow-thistle. Petiv. H. Brit. t. 1 4./ 5. 

 S. Sonchus n. 22 a. Hall. Hist. v. 1. 10. 

 S. asj)er non laciniatus, Raii Syn. 163. 

 S. asper dentatus. J)Ul. i)i Raii Syn. 1 ()3, ;/. 9. 

 S. asper. Ger. Em. 29 1 ./ Dod. Pcmpt. 643./ 

 S. asper laciniatus latifolius. Loes. Pruss. 257. /. 77. 

 S. a.spcra. Lob. IclSA.f. Fnrhs.IIist.67\.f. 

 S. tertius asperior. Dod. Pcmpt. 6 1.*^. /'. 3. 



