Sabulina verna

Sabulina verna is a scarce species of flowering plant in the family Caryophyllaceae, known by the common names spring sandwort, leadwort,[2] golden moss, or Irish moss.[3] It is a small mat-forming, perennial herb.[4] It was first described as Arenaria verna by Carl Linnaeus in 1767 and is known by several synonyms including Minuartia verna.[1]

The small (7–9 mm across), 5-petalled flowers appear on short, downy stems from spring until late summer. The slender leaves have 3 veins.[5]

It ranges across temperate Eurasia and northwestern Africa[1] with a boreal-montane distribution. It is typically found on carboniferous limestone ground. It grows in short grassland, on exposed limestone pavement, on scree slopes and on metal-rich soils, including spoil heaps from lead mining.[4]