Definitions

1. adjective

resembling or characteristic of the milkweed plant, or its cotton-like seeds

“The field was covered with miliaceous fluff from the nearby milkweed plants.”

2. noun

a plant of the genus Asclepias, especially the common milkweed (Asclepias syriaca) or its seeds

“The naturalist studied the different species of miliaceous plants in the region.”