270 34. Persicaria. 15. POLYGONE^. Vlex.mon, 



Persicaria folio subtns incano, Di'len in Rati Syn. 145,5. 

 Polygonum incana, Willd. Sp, PL 446. 

 Polygonum tomentosum, Schreink Bav. 1,669. 

 Polygonum Persicaria ;S, S-nth Fl. Brit. 42^1^ 

 Polygonum turgidum, Theuil. Par. 2, 199. 

 Polygonum scabrum, Moench Meth. 629. 

 Water pepper. 



Corn-fields ; annual ; July. 



Stem 18 in. high; leaves spread; spikes reddish. — Vlant 

 acridj like pepper. 



6. Persicaria lapathifolia. Dockleaved peachwort. 

 Stem patulous ; leaves ovate, lanceolate, bald ; stipules 



not fringed ; peduncles rough, glandular ; spikes ovate, erect, 

 becoming drooping ; thecidium compressed, concave on 

 each side ; style 2-iobed. 



Hydropiper, Ger. em. 445, 1. 



Persicaria mitis major, foliis pallidioribus, Rail Syn. 145, 6. 



Polygonum lapathifolium, Lin. S. P. 51T. 



Polygonum pallidum, With. Bot. Arr. 381. 



Polygonum Persicaria J, Huds. Fl. Angl. 170. 



Polygonum Pennsylvanicum, Curt. Fl.Lond. 



Dunghills and cornfields ; annual ; July and August. 

 Stem upright, 3 feet high; leaves pale green, mealy; 

 upper leaves glandular ; spike thick, ovate. 



^. ritbra. Stem and Jlower red. 



7. Persicaria maculata. Spotted peachiuort. 

 Stem patulous, spotted with red ; leaves ovate, lanceolate ; 



beneath bald, whitish; stipules not fringed; peduncles rough, 

 glandular ; spikes oblong, slender ; style 2-lobed. 



Persicaria latifolia geniculata, caulibus macuiatis, Dilltn in Raii Syn, 

 145, 8. 



Polygonum Persicaria, >j, S. Huds. Fl Angl. 

 Poiygonuiii pallidum H, With Bot. Arr. 

 Polygonum Pennsylvanicum, var. Curtis Fl.Lond, 

 Polygonum lapath' folium y. Smith Fl. Brit. 45:5. 



Ditches and watery places ; annual ; September. 



Upper leaves smooth, dotted beneath ; lower Ituves blueish 

 white, downy, not dotted ; spikes slender, whitish green, 

 becoming reddish. 



8. Persicaria salicifolia. Willoiv-leaved peacliivort. 



Stem decumbent ; leaves ovate, lanceolate, hoary be- 

 neath ; stipules not fringed; peduncles rough, glandular; 

 spike ovate ; stamens 6 ; styles 2. 



