Dicentra
Dicentra (Greek dís "twice", kéntron "spur"),[3] known as bleeding-hearts, is a genus of eight species of herbaceous plants with oddly shaped flowers and finely divided leaves, native to eastern Asia and North America.
Flowers have two tiny sepals and four petals. The flowers are bisymmetric: the two outer petals are spurred or pouched at the base and curved outwards or backwards at the tip, and the two inner ones with or without a crest at the tip. In Dicentra, all leaves are in a basal rosette, and flowers are on leafless stalks. In other genera with bisymmetric heart-shaped flowers (Lamprocapnos, Dactylicapnos, Ichtyoselmis, Ehrendorferia), leaves grow on stems as well as from the root.[4] Each of the two compound stamens is composed of one median and two lateral half stamens fused together. The stamens and pistil are held between the inner petals.
The genus Dicentra includes plants whose flowers and leaves grow on stems directly from the roots. Species with branching stems used to be included in the genus, but have now been moved to other genera.[4]
The genera Dactylicapnos, Ichtyoselmis, Ehrendorferia and Lamprocapnos were previously included as subgenera in Dicentra, but have been shown not to belong in this genus (see for example Flora of China)
There are several hybrids and cultivars involving Dicentra eximia, Dicentra formosa, and Dicentra peregrina, including (those marked agm have gained the Royal Horticultural Society's Award of Garden Merit):-[5]
Hybrids involving Dicentra peregrina are often intolerant of hot, humid climates and sun, like the species itself.
