Dong Lei / Poppy (Meconopsis punicea) in habitat, Serxu, Shiqu county, Sichuan Province, Qinghai-Tibet Plateau, China. August.

Dong Lei / Blue poppy (Meconopsis lyrata) Kawakarpo Mountain, Meri Snow Mountain National Park, Yunnan Province, China.

Bernard Castelein / Marsh helleborine (Epipactis palustris) flowers, Groot Schietveld, Wuustwezel, Belgium, June.

Chris Mattison / Ivy leaved cyclamen (Cyclamen hederifolium) in flower, Italy, November.

Ross Hoddinott / Common poppies (Papaver rhoeas) backlit in evening light, Polly / Porth Joke, Pentire, Newquay, Cornwall, UK, July.

Tim Laman / A rainforest understory shrub's leaves droop at night. Danum Valley Conservation Area, Sabah, Malaysia, Borneo. Sequence

Tim Laman / A rainforest understory shrub's leaves droop at night. Danum Valley Conservation Area, Sabah, Malaysia, Borneo. Sequence 1/2

Bernard Castelein / Yellow iris flower about to unfurl {Iris pseudacorus} Belgium, Europe