International Carnivorous Plant Society
Carnivorous Plant Newsletter Archive
Pollination of Dionaea muscipula, the Venus Flytrap
Stephen E. Williams and Bill Scholl
Carniv. Pl. Newslett. 50(1):16-23
Published March 2021
Flowers open in late morning and pollen is on anthers arrayed directly above the center of the flower by 11:30 EST. Twenty-four hours later the stamens have bent so that the anthers are at the periphery of the flower and the stigma has expanded, presenting a papillate surface receptive to pollen. Insects visit the flower between 11:30 EST and 18:00 EST.
Rewards for pollinators are pollen and nectar from glands at the base of the petals. Possible attractants include the bright white radially symmetrical corolla with radiating grey veins, and on the second day, the radially displayed stamens that may act as a 'nectar guide'. No markings on the petals are visible in the ultraviolet light but the pollen-laden anthers are UV-fluorescent and would stand out as a ring of dots to any UV-perceptive insect.
Keywords: Dionaea muscipula, pollination, Venus flytrap, insect, pollinators
Stephen E. Williams and Bill Scholl. 2021. Pollination of Dionaea muscipula, the Venus Flytrap. Carniv. Pl. Newslett. 50(1):16-23.
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