《太平广记·卷四百零九·草木四》
但是一棵当中，所开的不过一二十朵，而且不能像图画上画的那样一丛一丛开得鲜艳美丽。
然一本之内，所发不过一二十花。且开不能如图画者，丛发烂熳。
However, a plant will only produce around twenty flowers, and the flowers cannot be as beautiful and colorful as they are in the paintings.