Hylaeaicum margaretae is a species of flowering plant in the family Bromeliaceae, endemic to Brazil (the state of Amazonas).

[2] The specific epithet pays homage to Margaret Mee, a British botanical artist who carried out fifteen expeditions to the Amazon rainforest to collect and paint rare or endangered plant species, including many species of Bromeliaceae.

[1] The holotype was collected by Margaret Mee in the state of Amazonas by the Içana River in February 1968.

[5] Margaret Mee was known for her paintings of bromeliads in the Amazon, and Hylaeaicum margaretae was one of the species she recorded in watercolor.

The painting of H. margaretae, made in 1979, was notable for its ability to capture botanical details of the species while still showing the plant in its totality, rather than on different plates which depict individual parts.