Lysimachia nummularia
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Description
Round-leaved, repent ground cover plant.
Distribution in Finland
An ornamental plant. An escape of cultivation by ditches, shores, moist meadows, lawns, herb-rich forests, slopes of rocky outcrops, ruderal waste grounds.
Origin and general distribution
From Central and Southern Europe to Caucasus. The native range extends to Karelian Isthmus.
Growing form
Perennial herb.
Size
5 cm high, shoots that root at the nodes grow fast in length.
Stem
The stem is procumbent, creeping and glabrate.
Leaf
The leaves are opposite and short-petiolate. The lamina is oval or nearly orbicular, rounded or cordate and dark-punctate.
Flower
The axillary flowers are solitary or paired. The corolla is 20–30 mm wide and yellow. The lobes are dark-punctate and short-pubescent.
Fruit and seed
The fruit is a capsule that is shorter than the calyx. Fruits rarely develop in Finland.
Flowering time
Flowers in July–September.
Habitat
Sunny – shade.
Substrate
5–10 cm deep, but 20 cm deep in sun, mesic, mesotrophic.
Additional information
Propagation by division. Fast-spreading ground cover plant. Flowers more abundantly in sun, but the foliage becomes more lush and dense.
