Plants : LamiaceaeFerns and Flowering Plants

Mentha pulegium L.

Pennyroyal

Description: This mint is now confined to one site on the west-side of Lough Beg, where it grows on the lake shore. A low-growing plant with small leaves and dense rings of lilac-coloured flowers which are produced in late summer.

All names: Mentha pulegium L.

Distribution Map from NBN: Mentha pulegium at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Mentha pulegium at iNaturalist World Species Observations database.

 Hackney, P., 2026. Mentha pulegium. L.. [In] Flora of Northern Ireland.
https://habitas.org/flora/species.php?item=4194. Accessed on 2026-11-02.