page_title: Nectar spur
hierarchical_section_title: Nectar spur
caption_attribution_description: Deutsch: Schöne Akelei (Aquilegia formosa) in Illinois, USA. English: A specimen of Aquilegia formosa in Illinois, USA. Français&#160;: Une ancolie, Aquilegia formosa. Photo prise dans l'Illinois, aux États-Unis, où cette espèce est indigène.
context_page_description: A nectar spur is a hollow extension of a part of a flower. The spur may arise from various parts of the flower: the sepals, petals, or hypanthium, and often contain tissues that secrete nectar. Nectar spurs are present in many clades across the angiosperms, and are often cited as an example of convergent evolution.
context_section_description: A nectar spur is a hollow extension of a part of a flower. The spur may arise from various parts of the flower: the sepals, petals, or hypanthium, and often contain tissues that secrete nectar (nectaries). Nectar spurs are present in many clades across the angiosperms, and are often cited as an example of convergent evolution.
caption: Nectar spurs on Aquilegia.
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