Pennyroyal — Bastard

( Trichostema dichotomum ), also commonly known as blue curls , is a small, aromatic annual plant native to eastern North America. While its common name suggests a close relation to true pennyroyal ( Mentha pulegium ), it is actually a distinct genus within the mint family ( Lamiaceae ) that shares a similar "pennyroyal-like" scent. Key Characteristics and Appearance

Bastard pennyroyal is most easily identified by its unique flowers and growth habit: bastard pennyroyal

The flowers are typically a delicate blue or purple with five petals. The most striking feature is the four long, hair-like stamens that protrude and curl dramatically downward, giving the plant its other name, "blue curls". ( Trichostema dichotomum ), also commonly known as

Like many mints, it has square stems and paired, opposite leaves. The plant is covered in fine hairs and oil-producing glands that make it sticky to the touch and give off a strong fragrance when crushed. The most striking feature is the four long,

This plant is a specialist for harsh, well-drained environments: Trichostema dichotomum (Bastard pennyroyal)

It is a relatively short annual, typically growing between 6 to 18 inches tall. Habitat and Ecology