The results of isozyme, RAPD, and morphological studies indicated that the two taxa are better treated as two varieties of L. longiflorum than as two independent species.

• 综合形态特徵、同功酶及逢机扩大多型性核醣核酸之分析结果，本研究建议将糙茎铁炮百合与台湾百合以变种处理较为恰当。