Lysimachia nummularia

Tracheophyta MagnoliopsidaPrimulaceaeLysimachiaLysimachia nummularia


An evergreen perennial of open, damp, often clay-rich soils in shaded woodland and hedges, especially the sides of streams, and damp grassland and path-sides. It can spread rapidly from stem fragments. Seed set is rare, and some clones may be sterile. 0-365 m (S. of Buxton, Derbys.).



World Distribution

European Temperate element; widely naturalised outside its native range.

© P. Shannon

Broad Habitats

Light (Ellenberg): 5

Moisture (Ellenberg): 7

Reaction (Ellenberg): 5

Nitrogen (Ellenberg): 5

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.7

July Mean Temperature (Celsius): 15.5

Annual Precipitation (mm): 895

Height (cm): 5

Perennation - primary


Life Form - primary


Life Form - secondary


Comment on Life Form

classified as Anagallis tenella



Clonality - primary

Extensively creeping and rooting at nodes

Count of 10km squares in Great Britain: 1266

Count of 10km squares in Ireland: 227

Count of 10km squares in the Channel Isles: 3

Atlas Change Index: -0.02

Weighted Changed Factor: 25

Weighted Change Factor Confidence (90%)


JNCC Designations


Atlas text references

Atlas (202c)
Bittrich V, Kadereit J
1988.  Cytogenetical and geographical aspects of sterility in Lysimachia nummularia. Nordic Journal of Botany. 8:325-328.
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.
Simpson BB, Neff JL, Seigler DS
1983.  Floral biology and floral rewards of Lysimachia (Primulaceae). American Midland Naturalist. 110:249-256.