noun
pressed flower
Refers to flowers that have been pressed and dried, often for craft or decorative purposes.
押し花を栞にした。
I made a bookmark out of pressed flowers.
押し花の額縁を壁に飾った。
I hung a framed pressed flower picture on the wall.
ドライフラワー refers to dried flowers in general, often preserved in three-dimensional form, while 押し花 specifically means flowers pressed flat.
Compound of 押し (oshi, 'pressing') + 花 (hana, 'flower'), with rendaku voicing of hana to bana.