or Thurnwort, a genus of the polygonia order, belonging to the hexandria clas of plants. Of this genus, Linnæus enumerates seven species, viz. the plantago, or great water-plantain, which grows in all the marshy parts of this country; the ranunculoides, or lesser water-plantain; the natans, or creeping water-plantain; the damalonium, or star-headed water-plantain; all which are... are natives of Britain. The others, viz. the flava, cor- difolia, and subulata, are natives of America, where they are generally found in flagrating waters, and oth- er swampy places; so that it would be difficult to preserve them in Britain, for they will not live in the open air, and require a bog to make them thrive: but as they are plants of no great beauty or use, it is not worth while to cultivate them in this country.