Source : Webster's Revised Unabridged Dictionary (1913)

Awlwort \Awl"wort`\, n. [Awl + wort.] (Bot.)
   A plant ({Subularia aquatica}), with awl-shaped leaves.

Source : WordNet®

awlwort
     n : small aquatic plant having tufted awl-shaped leaves in a
         basal rosette and minute white flowers; circumboreal
         [syn: {Subularia aquatica}]