Michael Hutchinson / Titan arum (Amorphophallus titanum), in flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the largest unbranched flower inflores...

Michael Hutchinson / Titan arum (Amorphophallus titanum), in flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the largest unbranched flower inflores...

Kevin Schafer / Whitespot Giant Arum (Amorphophallus paeoniifolius) inflorescence, Tompotika Peninsula, central Sulawesi, Indonesia

Juan Carlos Munoz / Giant lobelias (Lobelia rynchopetalum), many with inflorescences. Chennek region, Simien Mountains, Ethiopia, Feb 2010

Alex Hyde / Enormous inflorescence of Arum plant (Amorphophallus sp) Dry deciduous forest, Kirindy Forest, Western Madagascar. October.

Ross Hoddinott / Close-up of Hazel inflorescence (Corylus avellana) in spring, with both male catkins and female flower visible, near Bradworthy, Devon, UK. March 09.

Neil Lucas / Close-up detail of Titan Arum inflorescence, Sumatra

Michael Pitts / Chain of fluorescent tunicates {Salpa maxima} off Komodo Is, Indonesia

Neil Lucas / Titan arum (Amorphophallus titanum) Summatra. This species has the largest unbranched flower inflorescence which smells strongly of rotting carrion.

Nigel Cattlin / Sea squill (Drimia maritima) flower spike, close up. Isola Rossa, Sardinia, September.

Nigel Cattlin / Sea squill (Drimia maritima) flower spike near coast. Isola Rossa, Sardinia, September 2016.

Nigel Cattlin / Knapweed broomrape (Orobanche elatior) flower spike in grassland. Disused chalk pit nature reserve, Berkshire, England, UK. June