The Collaborative International Dictionary of English v.0.48:

Stalk \Stalk\, v. i. [imp. & p. p. Stalked (st[add]kt); p. pr.
   & vb. n. Stalking.] [AS. staelcan, stealcian to go slowly;
   cf. stealc high, elevated, Dan. stalke to stalk; probably
   akin to 1st stalk.]
   1. To walk slowly and cautiously; to walk in a stealthy,
      noiseless manner; -- sometimes used with a reflexive
      pronoun. --Shak.
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            Into the chamber he stalked him full still.
                                                  --Chaucer.
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            [Bertran] stalks close behind her, like a witch's
            fiend,
            Pressing to be employed.              --Dryden.
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   2. To walk behind something as a screen, for the purpose of
      approaching game; to proceed under cover.
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            The king . . . crept under the shoulder of his led
            horse; . . . "I must stalk," said he. --Bacon.
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            One underneath his horse, to get a shoot doth stalk.
                                                  --Drayton.
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   3. To walk with high and proud steps; -- usually implying the
      affectation of dignity, and indicating dislike. The word
      is used, however, especially by the poets, to express
      dignity of step.
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            With manly mien he stalked along the ground.
                                                  --Dryden.
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            Then stalking through the deep,
            He fords the ocean.                   --Addison.
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            I forbear myself from entering the lists in which he
            has long stalked alone and unchallenged. --Merivale.
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The Collaborative International Dictionary of English v.0.48:

Stalked \Stalked\ (st[add]kt), a.
   Having a stalk or stem; borne upon a stem.
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   Stalked barnacle (Zool.), a goose barnacle, or anatifer; --
      called also stalk barnacle.

   Stalked crinoid (Zool.), any crinoid having a jointed stem.
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WordNet (r) 3.0 (2006):

stalked
    adj 1: having or growing on or from a peduncle or stalk; "a
           pedunculate flower"; "a pedunculate barnacle is attached
           to the substrate by a fleshy foot or stalk" [syn:
           pedunculate, stalked] [ant: sessile, stalkless]