Answer:

poppies

Answer	Crossword Clue
POPPIES	Flowers in Oz
POPPIES	California state flowers
POPPIES	They grow in Flanders' Fields.

POPPIES	Plants with showy flowers.
POPPIES	Golden Triangle flowers
POPPIES	Remembrance Day symbols

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.