TURTLEHEADS
Scrabble letter values: T1U1R1T1L1E1H4E1A1D2S1 = 15
Definition
TURTLEHEADS is the plural of TURTLEHEAD.
noun TURTLEHEAD: showy perennial of marshlands of eastern and central North America having waxy lanceolate leaves and flower with lower part creamy white and upper parts pale pink to deep purple.
Synonyms of TURTLEHEAD: shellflower, shell-flower, snakehead, snake-head, Chelone_glabra