An online resource based on the award-winning nature guide

Grass-Pink

Calopogon Flowering

6-26-15  calopogon 113A visit to a bog or marshy area at this time of year may well reward you with the sight of a striking orchid known as Calopogon or Grass-Pink (Calopogon tuberosus). Immediately noticeable are the fine, white “hairs” on the upper lip of the flower, which are thought to act as a “pseudopollen” lure, attracting native, recently-emerged bumblebees. The bees, expecting a reward of nectar and/or pollen, land on the hairs. At this point, the hinged labellum (part of flower that attracts insects and acts as a landing platform) swings down under the weight of the bee and positions the bee on the column (fused male and female structures located directly beneath the labellum), where pollen can be placed on its back. If the bee already carries a load of pollen, it will contact the stigma and thus pollinate the plant.

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