Species within a genus

Genus: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
POLYGONUM (G)
Knotgrass (Le)
Family: POLYGONACEAE
polys, polle, poly, = (of number ), many; (of size), heavy; (of value), much; gony, = the knee (knee, node (of grass), angled, angular) (many-jointed stem)
(LS, BL, Le)
Polygonum arenastrum (alien and naturalised) (La)

Location: (P)
harena, arena, = sand, sands, a sandy place, a sandy desert; -astrum, = indicates inferiority or incomplete resemblance, hence often applied to the wild equivalent of a cultivated plant.
(ld, BL)
Polygonum aviculare (La)
Bird Knotgrass(PS) Knopgras Voëlduisendknoop
Location: (K)
avis, = a bird; -ulus, = diminutive; -alis, -aris, = belonging or pertaining to, resembling, provided with. (avicula, =of or pertaining to small birds)
(ld, BL, Ox)
Polygonum maritimum (La)

Location: (F)
mare, = sea-water, salt-water; maritimus, = of or belonging to the sea, sea-, maritime. (growing by the sea)
(ld, BL)
Polygonum undulatum (La)

Location: (P)
undo, = to rise in waves or surges, to throw up waves, to surge, swell; to wave, undulate; -ulus, = diminutive; -atus, = indicates possession or likeness. undulatus, = diversified as with waves, undulated. (undulated)
(ld, BL)