Pioneer Women's Memorial Garden (Adelaide) surrounded by green lawns, and four garden beds with ornamental trees and shrubs at the edges. Cornish's choice of plants was influenced by their symbolic meanings, selecting five "Populus nigra "Italica"" (Lombardy poplars) to represent the five women of the Pioneer Women’s Memorial Trust; "Quercus ilex" (holly oak) and "Myrtus communis" (myrtle) for protection and love; "Lonicera" (honeysuckle) for love, generosity and devotion; and "Syringa vulgaris" (lilac) to symbolize memory, protection, youth and tenderness. Here the designer carefully selected plants for their metaphorical meanings. Original plans for the garden included the use of a 'floral clock', that would represent the
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