PL ex. mon. 
17. POLYGONEiE. 34. Persicaria. 269 
Persicaria vulgaris acris, seu hydropiper, Raii Syn. 144, 1. 
Persicaria vulgaris acris, seu minor, Park. 856. 
Polygonum Hydropiper, Lin. S. P. 517. 
Persicaria acris, Lamarck FI. Fr. 234. 
Polygonum gracile, Salisb . Prod. 259. 
Arsesmart. Water-pepper. 
Watery places ; annual ; September. 
Stem 2 feet high, much branched; upper part of the joints 
swelled; leaves pale green ; flowers reddish, glandular on 
the outer side. 
3. Persicaria pusilla. Dwarf peachwort . 
Stem rooting at bottom ; leaves linear, lanceolate, flat, 
spotless; stipules fringed; spikes slender, threadshape, rather 
upright ; style very slightly 2-cut. 
Persicaria pusilla repens, Raii Syn. 145,2; Ger.em. 446,3; Park. 857, 
Polygonum Persicaria /3, Lin. S. P. 518. 
Polygonum minus, Htids. FI. Angl. ed. 1, 148. 
Polygonum Hydropiper 0, Huds. FL Angl. ed. 2, 170. 
Persicaria pusilla, Lamarck FI. Fr. 235. 
Polygonum strictum, Alliorti Ped. 2051. 
Polygonum intermedium, Ehrh. 
Polygonum mite, Schrank Bavar. 1, 668. 
Polygonum angnsti folium, Roth Germ. 2, 453. 
Small creeping arsesmart. 
Damp sandy places ; annual ; September. 
Stems' many, above erect, 9 in. high, slightly branched; 
spikes reddish; flowers not glandular on the outer side. 
4. Persicaria maculosa . Spotted peachwort. 
Stem erect ; leaves ovate, lanceolate, often spotted, bald ; 
stipules fringed ; spikes ovate, oblong ; peduncles smooth ; 
style nearly 2-cut. 
Persicaria maculosa, Raii Syn. 145 ; Ger. cm. 445, 2. 
Persicaria vulgaris mitis seu maculosa, Park. 856, 
Polygonum Persicaria, Lin. S. P . 518. 
Polygonum nudicaule, S&lisb. Prod. 259. 
Dead arsesmart. 
Damp places; annual ; July and August. 
Stem 3 feet high, alternately branched ; leaves spreading, 
deflexed ; spike upright, rose-red. 
0. argentea. Leaves not spotted, silver coloured. 
Polygonum folio salicis alba vulgaris, Raii Syn. 145,7. 
Silver arsesmart, Peliver Herb. Brit. 3, 9. 
5. Persicaria incana. Grey peachwort . 
Stem ascending; leaves oblong, lanceolate, spotted, be- 
neath pubescent; stipules fringed ; peduncles smooth ; spikes 
oblong, erect. 
