Argentine wine takes place in the far western expanse of Argentina leading up to the foothills of the Andes. The Mendoza region is the largest region and the leading producer, responsible for more than two-thirds of the country's yearly production, followed by the San Juan and La Rioja regions to the north. In the far northwestern corner of the country are the provinces of Catamarca, Jujuy and Salta which includes some of the world's highest planted vineyards. In the southern region of Patagonia, the Río Negro and Neuquén provinces have traditionally been the fruit producing centers of the country but have recently
Dicentra formosa on the western slope of the Sierra Nevada. Subsp. "oregana" grows in a small area of southern Oregon and northern California in serpentine soils in the Siskiyou Mountains. These subspecies are also distinguished by appearance: "Dicentra formosa" is widely grown as a garden plant, and several cultivars have been developed. Those marked have gained the Royal Horticultural Society's Award of Garden Merit: There are several hybrid cultivars involving "D. formosa", the eastern American species "D. eximia" and the Japanese species "D. peregrina": The Pacific bleeding-heart ("Dicentra formosa" subsp. "formosa") was first noted by Europeans when the Scottish surgeon and naturalist