paper flower

Short definition from Wiktionary

Noun

1. 1
   A plant, Bougainvillea glabra, and its flower head, so called for the papery bracts.
2. 2
   A plant, the peach-leaved bellflower, Campanula persicifolia, and its flower.
3. 3
   A plant, Psilostrophe cooperi, and its flower.
4. 4
   Used other than figuratively or idiomatically: see paper, flower.