|  | herbs; NOT [shrubs or trees] | 
      |  | plants NOT with colored milky juice | 
      |  | plants with more than one normal leaf | 
      |  | some or all leaves alternate; NOT [leaves
        opposite, whorled or basal] | 
      |  | leaves without stipules, or having
        glands; NOT [leaves with stipules] | 
      |  | leaves mostly submerged, small, coarsely
        to finely dissected; NOT [leaves mostly floating, large, suborbicular or
        reniform] | 
      |  | flowers pedicellate; NOT [flowers
        sessile, axillary] | 
      |  | flowers with two floral rings, and with
        each petal distinct from the others | 
      |  | flowers perfect; NOT [flowers monoecious] | 
      |  | calyx regular; NOT [calyx irregular, some
        sepals smaller than others] | 
      |  | petals mostly white or yellow | 
      |  | stamens usually more than 10; NOT
        [stamens 10 or fewer] | 
      |  | carpels separate; NOT [carpels united] |