Furnished with whorls; arranged in the form of a whorl or whorls; verticillate; as, whorled leaves.
Whorled refers to the arrangement of either buds or leaves along the stem. Whorled budding or leaves is two buds or leaves per node. DIAGRAM: Whorled Leaves PHOTO
a., when three or more leaves are arranged at the same level on a stem, typical of such plants as hydrilla.