nereocystis lutkeana

from The Collaborative International Dictionary of English v.0.48

Sea otter \Sea" ot"ter\ (Zool.)
   An aquatic carnivore ({Enhydris lutris} syn. {Enhydris
   marina}) found in the North Pacific Ocean. Its fur is highly
   valued, especially by the Chinese. It is allied to the common
   otter, but is larger, with feet more decidedly webbed.
   [1913 Webster]

   {Sea-otter's cabbage} (Bot.), a gigantic kelp of the Pacific
      Ocean ({Nereocystis Lutkeana}). See {Nereocystis}.
      [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Kelp \Kelp\ (k[e^]lp), n. [Formerly kilpe; of unknown origin.]
   1. The calcined ashes of seaweed, -- formerly much used in
      the manufacture of glass, now used in the manufacture of
      iodine.
      [1913 Webster]

   2. (Bot.) Any large blackish seaweed.
      [1913 Webster]

   Note: {Laminaria} is the common kelp of Great Britain;
         {Macrocystis pyrifera} and {Nereocystis Lutkeana} are
         the great kelps of the Pacific Ocean.
         [1913 Webster]

   {Kelp crab} (Zool.), a California spider crab ({Epialtus
      productus}), found among seaweeds, which it resembles in
      color.

   {Kelp salmon} (Zool.), a serranoid food fish ({Serranus
      clathratus}) of California. See {Cabrilla}.
      [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Nereocystis \Ne`re*o*cys"tis\, prop. n. [NL. See {Nereid}, and
   {Cyst}.] (Bot.)
   A genus of gigantic seaweeds.
   [1913 Webster]

   Note: {Nereocystis Lutkeana}, of the North Pacific, has a
         stem many fathoms long, terminating in a great vesicle,
         which is crowned with a tuft of long leaves. The stem
         is used by the Alaskans for fishing lines.
         [1913 Webster]