small eggplant; Japanese yellow loosestrife (Lysimachia japonica)
like begets like; the apple doesn't fall far from the tree; (lit.) eggplants don't grow on gourd vines
Carolina horsenettle (Solanum carolinense)
always listen to your parents; always value your parents' advice; (lit.) not even one in a thousand of a parents' opinion or an eggplant flower are in vain