Heather Angel / Bumblebee nectaring on Indian bean tree (Catalpa bignonioides) flower, pollen on back. Surrey, England, UK. August.
Heather Angel / Bumblebee (Bombus sp) nectaring on Indian bean tree (Catalapa bignoniodes) flower. Pollen on bee's back transferring to stigma. In garden, Surrey, England, UK. July.
Heather Angel / Southern catalpa (Catalpa bignonioides) flowers. Recently opened with yellow nectar guides, purple in older pollinated flowers. Surrey, England, UK. Native to USA.
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...
Paul Harcourt Davies / Indian Bean Tree (Catalpa bignonioides) close-up of branch of beans, Orvieto, Italy, Europe.