£72 36. Fagopyrum. 15. POLYGONEiE. PLex.mon , 
3-angular; corculum central; cotyledon foliaceous, transversely 
pleated. — Root fibrous ; stem much branched, upright or 
twining ; leaves heartshape-sagittate, or with the base cut 
in ; flowers corymbose or panicled, axillary or terminal. 
1. Fagopyrum esculentum, Esculent buckwheat* 
Stem upright, flexuous, spineless; leaves heartsliape, sa- 
gittate ; angles of the thecidium equal, not sinuated. 
Fegopyrum, Rail Syn. 144, 1. 
Tragopyron, Ger. em. 89. 
Tragopyrum, Park. 1141. 
Polygonum Fagopyrum, Lin. S. P. 522. 
Polygonum cereale, Salisb. Prod. 259. 
French wheat. Branks. Bullimong. 
Cultivated for its seeds, also as a green crop to plough 
in for manure, and to attract game to the place ; sometimes 
wild by roadsides, but does not bear our winters well: an- 
nual ; July to August. 
Stem a foot high, smooth ; leaves fleshy, the upper sessile; 
flowers purplish-white. — Seeds nutritive, make good crum- 
pets ; used also to feed poultry. 
2. Fagopyrum carinatum. Keeled buckwheat. 
Stem twining, smooth, angular; leaves cordate, sagittate; 
ocrece truncated, not notched ; outer lobes of the perigonium 
obtusely keeled. 
Fegopyrum scandens sylvestre, Raii Syn. 144,2. 
Volubilis nigra, Ger. em. 863, 5. 
Convolvulus minor atriplicis folio. Park. 171. 
Polygonum Convolvulus, Lin. S. P. 522. 
Polygonum infestum, Salisb. Prod. 259. 
Helxine caule volubili, Lin. FI. Lapp . 154. 
Fagopyrum carinatum, Moench. Meth. 290. 
Black bindweed. 
Fields ; annual ; June to September. 
Leaves pedicelled ; racemes terminal, leafy; flowers in 
bundles, drooping. 
3. Fagopyrum membranaceum . Winged buckwheat. 
Stem twining, streaked ; leaves triangular, sagittate- 
waved ; outer lobes of the perigonium winged, wings mem- 
branaceous. 
Polygonum dumetorum, Lin. S. P. 558. 
Polygonum Convolvulus, Stokes Bot. Mat. Med. 2, 399. 
Fagopyrum membranaceum, Moench. Meth. 290. 
Fields and hedges; annual; June and September. 
