The surface of the leaf, especially the laminar wing, bears glands which in spring exude large glistening dr„ r, s of nectar.
All the species exude resin, but no turpentine.
The whole of the green parts of the plant are covered with long soft hairs which exude a viscid juice, giving the surface a moist glutinous feeling.
Wide; they take two years to come to perfection and while growing exude much resin.
One, called turanjbin, appears to exude, in small round tears, from the camelthorn, and also from the dwarf tamarisk; the other, sir-kasht, in large grains and irregular masses or cakes with bits of twig imbedded, is obtained from a tree which the natives call si g h chob (black wood), thought by Bellew to be a Fraxinus or Ornus.