* a wild vine.
  Isa 5:4  Jer 2:21  Mt 15:13  Heb 12:15 
 * wild gourds.
   The word {pakk(8193)th,} from {peka,} in Chaldee, to burst, and in
   Syriac, to crack, thunder, is generally supposed to be the
   fruits of the coloquintida, or colocynth; whose leaves are
   large, placed alternately, very much like those of the vine,
   whence it might be called a wild vine:  the flowers are white,
   and the fruit of the gourd kind, of the size of a large apple,
   and when ripe, of a yellow colour, and a pleasant and inviting
   appearance.  It ranks among vegetable poisons, as all intense
   bitters do; but, judiciously employed, it is of considerable
   use in medicine.  It is said that the fruit, when ripe, is so
   full of wind that it bursts, and throws its liquor and seeds
   to a great distance:  and if touched, before it breaks of
   itself, it flies open with an explosion, and discharges its
   foetid contents in the face of him who touched it.