Authors: L.  

Botanical Description

Tufted to small clump-forming with rounded corm-like tubers and flowering stems 15-3 0cm or more in height. Basal leaves ternate, rounded in outline, each leaflet deeply lobed, usually lasting all winter. Flowers few to several, rich lustrous yellow, 1.2-2.5cm in diameter, late spring to summer. Europe, western Asia and North Africa, also naturalised in North America and New Zealand, in grassland especially over limestone. R.b. 'Pleniflorus' syn. Flore Pleno' has fully double flowers and a thickened rhizomatous rootstock, and may be of hybrid origin. For R.b. 'Speciosus Plenus', see R. constantinopolitanus. A variable species native to the British Isles but seldom cultivated on the rock garden as it tends to get too large.