蒂娜博士说，观叶植物比显花植物更佳。

Dr Tina says that foliage plants may be better than flowering plants.

阔叶树属于显花植物，包括橡树、榆树、枫树、枞树和桦树。

The broad-leaf trees are members of flowering plants, including the oaks, elms, maples, birches, and beeches.

但是在无亲缘物种，如稻子和大麦的基因组中也存在这种基因。因此它有可能存在于大多数的显花植物中。

But the gene is also present in the genome of unrelated species such as rice and barley, so it probably exists in most flowering plants.