A perennial of the Fumariaceae family, this species is native to the southern Alps and northern Apennines, where it naturally colonizes calcareous rocks, cliffs, scree, and old walls, from low altitudes up to about 1,500 meters. It has become naturalized in much of Western Europe, where it spontaneously settles in the crevices of walls and stone fissures.
It forms bushy, dense, and rounded clumps, 20 to 35 cm in height, with finely cut evergreen foliage, from soft green to glaucous green, flexible and slightly drooping. This abundant foliage, present all year round in mild regions, consistently adorns stone facings.
The flowers, bright yellow to golden yellow, tubular and spurred, are borne in short, upright clusters that continuously emerge from the foliage over a very long period. This almost uninterrupted flowering, from March to November in cultivation, is one of the most remarkable characteristics of the species.
In its natural habitat, its flowering extends from April to approximately September.
It reseeds abundantly and spontaneously, discreetly colonizing the joints of paving stones, stone stairs, and dry rockeries. It prefers well-drained soils, poor to moderately rich, calcareous, in sunny to semi-shaded situations. Robust and undemanding, it tolerates drought well once established.