The Collaborative International Dictionary of English v.0.48:

Whorled \Whorled\, a.
   Furnished with whorls; arranged in the form of a whorl or
   whorls; verticillate; as, whorled leaves.
   [1913 Webster]

WordNet (r) 3.0 (2006):

whorled
    adj 1: in the shape of a coil [syn: coiling, helical,
           spiral, spiraling, volute, voluted, whorled,
           turbinate]
    2: forming one or more whorls (especially a whorl of leaves
       around a stem) [syn: verticillate, verticillated,
       whorled]