Syringa josikaea capsule, splitting in two to release the two winged seeds. Growing conditions allow for cool to temperate climate and are fully frost hardy. The plant also grows in full sun to semi shade. Despite its continental European origin, it has proved to be surprisingly successful when cultivated in the oceanic extremes of northwestern Europe on the Faroe Islands and in arctic northern Norway north to Kirkenes. It has hybridised in cultivation with the closely related "Syringa komarowii" from China; the hybrid is named "Syringa × josiflexa". Syringa josikaea Syringa josikaea, the Hungarian lilac, is a species of lilac, native to
Rheum (plant) represented by about 60 extant species. Among species found in the wild, those most commonly used in cooking are the garden rhubarb ("R. rhabarbarum") and the so-called false rhubarb ("R. rhaponticum"), which is actually a true rhubarb. The many varieties of cultivated rhubarb more usually grown for eating are recognised as "Rheum" × "hybridum" in the Royal Horticultural Society's list of recognised plant names. The drug rheum is prepared from the rhizomes and roots of another species, "R. officinale" or medicinal rhubarb. This species is also native to Asia, as is the turkey rhubarb ("R. palmatum"). Another species, the Sikkim