Clinopodium acinos

Tracheophyta MagnoliopsidaLamiaceaeClinopodiumClinopodium acinos


A usually annual herb of open habitats in dry grassland, rocky ground or arable fields. In Britain it usually grows on calcareous soils, whereas in Ireland it occurs on sandy and gravelly sites, including eskers. It is also a rare casual of waste ground, quarries and banks by roads and railways. Lowland.



World Distribution

European Temperate element; also in C. Asia.

© P. Shannon

Broad Habitats

Inland rock (quarries, cliffs, screes)

Light (Ellenberg): 8

Moisture (Ellenberg): 2

Reaction (Ellenberg): 8

Nitrogen (Ellenberg): 1

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.6

July Mean Temperature (Celsius): 15.8

Annual Precipitation (mm): 778

Height (cm): 22

Perennation - primary


Life Form - primary

Therophyte (annual land plant)



Clonality - primary

Little or no vegetative spread

Count of 10km squares in Great Britain: 551

Count of 10km squares in Ireland: 0

Count of 10km squares in the Channel Isles: 0

Atlas Change Index: -1.59

Weighted Changed Factor: -52

Weighted Change Factor Confidence (90%)


JNCC Designations


Atlas text references

Atlas (244b)
Curtis TGF, McGough HN
1988.  The Irish Red Data Book. 1. Vascular Plants.
Hultén E, Fries M
1986.  Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
Meusel H, Jäger E, Rauschert S, Weinert E
1978.  Vergleichende Chorologie der zentraleuropäischen Flora. Volume 2. 2 vols.