Oriol Alamany / Leafy-bract Aster (Aster foliaceus) growing in a mountain forest clearing in Jasper National Park, Rocky Mountains, Alberta, Canada

Pete Oxford / Heliconia (Heliconia sp) flowers and bracts, Yasuni National Park, Amazon, Ecuador

Bernard Castelein / Meadow brown butterfly {Maniola jurtina} on bract / stem, Belgium

Gerry Ellis / King Protea (Protea cynaroides) bract and flower, native to South Africa

Michael & Patricia Fogden / Mosquito larvae in water-filled bract of Heliconia (HHeliconia wagneriana) rainforest, Costa Rica