Spillover from remnant grasslands enhances plant diversity in restorations but the effect is context dependent and driven by wind-dispersed seeds, such as milkweed. Disclaimer: AAAS and EurekAlert!
fluffy fibers along with tiny seeds. However, to tell them apart, the invasive species' pods are slightly smaller, growing between 1 to 3 inches long, while milkweed's grow to be 4 inches long.
In late summer and early fall, the milkweed flowers die and give way to bumpy football-shaped green seed pods. Each pod contains up to 200 seeds. Each seed is attached to a bit of fluff called floss.