326 
OCTANDRIA TRIGYNIA. 
Class VIII. 
TRIGYNIA. 
921. POLY'GONUM. 
5568 amphibium L. 
5569 ocreatum L. 
5570 virginianum L. 
W. Persicaria. 
amphibious 
spear-leaved 
Virginian 
5571 lapathifolium H. K. pale-flowered 
5572 Hydropiper L. Water Pepper 
5573 tinctor'wxmLcureiro dyer's 
5574 minus W. small 
5575 Persicaria L. spotted 
5576 incanum Schmidt hoary 
5577 barbatum L. bearded 
5578 orientale L. 
(3 album 
common 
white-flowered 
= A w 
1 
jn.au 
Pk 
A pr 
2 
jn.s 
W.G 
:^ A w 
3 
au.s 
w 
O w 
1 
jn.s 
G 
i O w 
1 
jl.s 
R 
£ Ol dy 
2 
jl.au 
R 
O w 
i au.s 
Pk 
O w 
2 
jl.au 
Pk 
O w 
2 
jl.au 
W 
-Jk A cu 
2 
jn 
W 
O or 
6 
jl.o 
R 
O or 
4 
jl.o 
W.G 
Sp. 36—60. 
Britain dit. D s.l Eng. bot. 436 
Siberia 1780. D s.l Gmel. sib. 3. t. ! 
N. Amer. 1640. D s.l Pa. th. 857. f. 6 
England dungh. S 
Britain wat. pi. S 
China 1776. C 
England wat.co. S 
Britain dit. S 
Germany 1804. S 
China 1819. S 
E. Indies 1707. 
S CO 
S CO 
Eng. bot. 1382 
Eng. bot. 989 
Eng. bot. 1043 
Eng. bot. 756 
Pet. h. br. t.3.f.8 
Bot. mag. 213 
5579 frutescens W. 
5580 aviculare L. 
5581 arenarium Bieb. 
5582 ^legans Tenore. 
5583 erectum L. 
5584 chinense W. 
5585 sagittatum W. 
5586 arifolium W. 
5581 Convolvulus L. 
5588 dumetorum L. 
5589 scandens L. 
5590 littorale Lk. 
5591 Bellar'di All. 
5592 acetosum Bieb. 
shrubby 
Knot-grass 
sand 
elegant 
upright 
Chinese 
arrow-leaved 
Arum-leaved 
common -climb, 
bush 
American-clim. 
sea-shore 
Bellardi's 
sour 
J O or 
^ O w 
^ O w 
* lZ3pr 
-S O w 
O dy 
O cu 
O cu 
O w 
O un 
A un 
A un 
A un 
O un 
2 jl.au 
3 ap.o 
1 my.au 
2 ap.au 
1 jl.au 
6 jl.au 
6 jl.au 
6 my.o 
3 my.s 
12 my.s 
12 jl.s 
1 jn 
1 jn.jl 
id 
Pk 
G 
Pu 
W.G 
P.R 
W.G 
W.G 
W.G 
W.G 
w 
Pk 
W.G 
W.G 
W.G 
Siberia 1770. L s.l 
Britain rubble. S' co 
Hungary 1807. S co 
Naples 182!. D co 
N. Amer. 1792. D s.l 
China 1795. S s.l 
N. Amer. 1759. S s.l 
N. Amer. 1816. S s.l 
Britain corn.fi. S s.l 
S. Europe 1803. S co 
N. Amer. 1749. D co 
S. Europe ... S co 
S. Europe ... S co 
Crimea 1820. S co 
Bot. reg. 254 
Eng. bot. 1252 
PI. rar. hu. t. 67 
Bur. in. t. 30. f. 3 
Lin. hor. cl. t.l2 
PI. am. t. 398. f.3 
Eng. bot. 941 
Flor. dan. t. 756 
PI. al. t. 177. f. 7 
5593 cr'ispulum B. M. 
5594 Bistorta L. 
5595 viviparum L. 
5596 divaricatum L. 
5597 undulatum L. 
5598 acidulum W. en. 
5599 salignum W. en. 
5600 tataricum L. 
5601 emarginatum Roth. 
5602 Fagopyrum L. 
5603 alpinum Ml. 
922. COCCOLO'BA. W. 
5604uv-ifera W. 
5572 
upright A pr 
Snake's-weed ^ /\ m 
Alpine-Bistort A pi" 
divaricating ^ A un 
wave-leaved A un 
narrow-leaved A un 
Willow-like A un 
Tartarian O un 
notch-seeded O cu 
Buck- Wheat O ag 
alpine ^ A un 
Seaside-Grape. 
round-leaved ^ □ fr 
5578 
If jl.au W.pk 
1§ my.s Pk 
1 my.s W.G 
2 jl.au W.G 
3 jn.jl W.G 
2 jn.jl W.G 
4 my.au W.g 
2 jl.au W.pk 
2 jl.au Pk 
2 jl.au Pk 
1 my.au W 
Polygonece. I 
60 ... W.G 
5580 
Siberia 1800. C s.l 
Britain me. pa. D co 
Britain al. pas. D s.l 
Siberia 1759. D co 
Siberia 1789. D s.l 
Siberia 1816. D s.l 
Siberia 1816. D s.l 
Siberia 175'>. S s.l 
China 1796. S s.l 
England corn.fi. S s.l 
Swi',^erl. 1816. D s.l 
?p. 8—20. 
W. Indies 1690. C r.m 
5575 
Bot. mag. 1065 
Eng. bot. 509 
Eng. bot. 669 
Gm. si. S.t.ll.f. I 
Gmel. sib. 3. t.lO 
Gm. si. 3.t.l3. f.l 
Eng. bot. 1044 
Al. ped. t. 68. f.l 
Jac. amer. t. 73 
5574 5571 
History, Use, Propagation, Culture^ 
921. Polygonum. From toXvs, many, and yovu, knee, many joints. These are nearly all common weeds 
of temperate climates. P. Bistorta, being one of the strongest vegetable astringents, might well be applied to 
the purpose of tanning leather, if it could be procured in sufficient quantity. The young shoots were formerly 
eaten in herb-puddings in the north of England, where the plant is known by the name of Easter Giant, and 
about Manchester they are substituted for greens under the name of Patience Dock. (Curtis, Withering.) 
The root was formerly considered to be alexipharmic and sudorific. 
P. viviparum is so 'named on account of the flowers frequently changing into vegetable bulbs. The roots 
have the same qualities as those of P. Bistorta, and are eaten in Sweden and Lapland, Siberia and Tartary. 
P. amphibium is one of the most difficult weeds to eradicate from recovered alluvial lands, and has no 
equal in this respect unless Equisetum. The roots, which in the water are properly stems, are found to a 
great depth in such soils ; and though by fallowing or otherwise stirring the surface, the leaves may be pre- 
vented from showing themselves for several years ; yet if the field be allowed to lie a year in grass, the surface 
will be found abounding with Polygonum. Many tracts in Scotland which have been recovered from rivers 
and estuaries for an unknown series of years still abound with this plant, and as under such circumstances it 
never advances so far as to flower and seed, the individuals must be the same which formerly were suspended 
in the water. As an aquatic, it has a gay, showy appearance, when in flower. 
P. Hydropiper is a powerful diuretic, and will dye woollen cloth of a yellow color. 
P. tinctorium, and also chinense and aviculare, are cultivated in China for dying cloth of a beautiful blue 
or green. 
