Dicentra formosa (western, wild or Pacific bleeding-heart) is a species of flowering plant in the poppy family, Papaveraceae (subfamily: Fumarioideae).

With its fern-like foliage and inflorescence of drooping pink, purple, yellow or cream "hearts", this species is native to the United States' Pacific Northwest and West Coast of North America.

The Pacific bleeding-heart is native to moist woodland, forest, and streambanks from California to British Columbia, from sea level to the subalpine zone.

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.

formosa) was first noted by Europeans when the Scottish surgeon and naturalist Archibald Menzies encountered it on the Vancouver Expedition.