Pictorial guide to the flora of the British Isles

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Mentha pulegium L.

pennyroyal (Lamiaceae / Labiatae)

 SpreadBias within British IslesDirection of bias
RestrictedModerate tendencySE
Plant Atlas 2020
BSBI Distribution Map

Mentha pulegium (seen here shortly before anthesis) is a rare species of damp grassland and heaths; it differs from Mentha arvensis and its hybrids in that the calyx has hairs inside and its lower teeth are longer and narrower than the others.

Mullion (VC1: West Cornwall & Scillies); 2021-07-13

 pennyroyal / Mentha pulegium: _Mentha pulegium_ (seen here shortly before anthesis) is a rare species of damp grassland and heaths; it differs from _Mentha arvensis_ and its hybrids in that the calyx has hairs inside and its lower teeth are longer and narrower than the others.

All images copyright © Christopher J. Dixon unless otherwise indicated.

L-R: Bidens tripartita, Melilotus officinalis, Mimulus guttatus, Thalictrum flavum, Ranunculus peltatus, Anchusa arvensis, Malva alcea, Lolium perenne