Kevin Schafer / African Tulip Tree (Spathodea campanulata) flowers, Santa Cruz Island, Galapagos Islands, Ecuador

Cheryl-Samantha Owen / Sausage tree (Kigelia africana) fruit silhouetted at dusk, Uganda, East Africa

MYN / Clay Bolt / Trumpet creeper / vine (Campsis radicans) in flower, Dacusville, Pickens County, South Carolina, USA, July. meetyourneighbours.net project

MYN / Clay Bolt / Trumpet creeper / vine (Campsis radicans) Dacusville, Pickens County, South Carolina, USA, July. meetyourneighbours.net project

Christian Ziegler / Guayacan Trumpet Tree (Tabebuia guayacan) dropped petals after synchronized mass flowering triggered by dry-season rain, Barro Colorado Island, Panama

Christian Ziegler / Guayacan Trumpet Tree (Tabebuia guayacan) synchronized flowering caused by heavy rain during the dry season, Barro Colorado Island, Panama

Simon Colmer / Calabash / Kamandal fruit (Crescentia cujete) Fruit crop grown for use as a container - used to carry water and other liquids. Also medicinal plant naturalised in India, New Delhi, India, November

Simon Colmer / Mildew on Indian bean tree (Catalpa bignonioides) Mildew is caused by either Erysiphe catalpae or Erysiphe elevata (syn. Microsphaera elevata) Both mildews were previously known in the USA, but have...

Mary McDonald / Tabebuia tree (Tabebuia impetiginosa) in blossom, Pantanal, Brazil, August

Konrad Wothe / Rainbow Lorikeet (Trichoglossus haematodus) pair in Jacaranda (Jacaranda mimosifolia), Atherton Tableland, Queensland, Australia

Paul Harcourt Davies / Indian Bean Tree (Catalpa bignonioides) close-up of branch of beans, Orvieto, Italy, Europe.

Alan Watson / 'Palo de vela' or Candle tree (Tabebuia ricardii) in tropical rainforest at 500 metres, Loma Quita Espuela Scientific Reserve, Dominican Republic. NB:This species is endemic to the Dominican Republic...

Martin Gabriel / Roble de Sabana (Tabebuia rosea) flowering in dry season, Palo Verde National Park, Costa Rica, February 2009

Luiz Claudio Marigo / Yellow poui tree (Handroanthus serratifolius) flowering on the banks of the Madeira River, Rondônia State, Western Brazil.

Michael & Patricia Fogden / Mangrove Hummingbird (Amazilia boucardi) male at Puiva Tree (Tabebuia impetiginosa) flowers, Costa Rica

Michael & Patricia Fogden / Green-breasted Mango (Anthracothorax prevostii) hummingbird female visiting flowers of Puiva Tree (Tabebuia impetiginosa), Costa Rica

Shattil & Rozinski / Desert willow {Chilopsis linearis} flowers, USA

Gavin Maxwell / Red flower (Incarvillea mairei) endemic to Tibet, providing colour to the barren landscapes of the Tibetan Plateau. Chang Tang, Western Tibet 2007

Gavin Maxwell / Red flower (Incarvillea mairei) endemic to Tibet, providing colour to the barren landscapes of the Tibetan Plateau. Chang Tang, Western Tibet 2007

Pete Oxford / Rosy trumpet tree {Handroanthus heptaphyllus} in bloom in mid August. Pantanal, Brazil

Pete Oxford / Rosy trumpet tree {Handroanthus heptaphyllus} in bloom in mid August. Pantanal, Brazil

Luciano Candisani / Flame Vine (Pyrostegia venusta), native to southern Brazil

Christian Ziegler / Bignonia (Tabebuia sp) trees flowering in the Canal Zone, tropical forest canopy in Soberania National Park, Panama

Nature Production / Sausage Tree fruits {Kigelia pinnata} Zambia

Tony Phelps / Cape Honeysuckle {Tecoma capensis} Nr Oudtshoorn, Little Karoo, South Africa.

Michael & Patricia Fogden / Puiva Tree (Tabebuia impetiginosa) flowering shortly after rain, Costa Rica

Michael & Patricia Fogden / Yellow Cortez (Tabebuia ochracea) flowering shortly after rain, Costa Rica

Gerry Ellis / African Tulip Tree (Spathodea campanulata), blossoms, El Yunque National Forest, Puerto Rico

Nature Production / Sausage Tree {Kigelia pinnata} with fruits hanging down, Zambezi National Park, Zimbabwe