The moth inhabits environments where its larval host plants,[6] particularly those in the Vernonia genus[7] (often referred to as ironweeds), thrive.

These plants typically grow in disturbed areas, open fields, and along roadsides, providing ample feeding opportunities for the larvae.

[8] The adult moths are most active during the warmer months, generally from May to October, coinciding with the blooming periods of their host plants.

The forewings are characterized by a distinctive pattern that includes shades of brown and yellow, often with darker markings.

The physical appearance of P. oxydalis not only aids in camouflage against predators but also plays a role in mate selection and species recognition, critical for reproductive success in moths.

[11] Their feeding habits can impact plant health, potentially influencing the distribution and abundance of Vernonia and related species.