Syringa komarowii Syringa komarowii Syringa komarowii is a species of lilac native to central China, commonly called nodding lilac. It is native to the Provinces of Gansu, Hubei, Shaanxi, Sichuan, Yunnan. It is a shrub growing to 3–6 m tall, with erect branches. The leaves are oval-oblong, 5–19 cm long and 2–7 cm broad. The flowers are fragrant and range in colour from pink to mauve, sometimes with a white base; they are produced in early summer on panicles 4–25 cm long and are attractive to bees, butterflies, and birds. The panicles often hang limply, which is how the plant got its
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