Members of which phylum contains stinging

Cnidarians

Explanation:

The cnidarians are the phylum in which every member has tentacles with stinging cells at their tips. The name of the phylum itself actually means ''stinging creature''. This stinging cells are used for capturing prey, holding onto it, inject toxins in it, and subdue it. The stinging cells of the members of the cnidarian phylum are called cnidocytes and they have a unique structure which is called nematocyst. The members of this phylum are actually the well known jelly fishes, corals, as well as the Portuguese man-of-war, and the sea anemones.