但自此以后，无论野外或栽培环境中一直未再发现其开花。直到2016年在自然旗下的《ScientificReports》期刊发表的一份研究发现其罕开花的原因：本种由于基因缺损，不能产生足够的  植物激素 ——赤霉素来激活其开花程序。研究者通过外施赤霉素，终于成功诱导绿萝开花。
Fungi can deplete the soil of readily available nutrients such as nitrogen , causing plants growing within the circle to be stressed which leads to plant discoloration . Some fungi also produce chemicals which act like  hormones called gibberellin s , which affect plant growth , causing rapid luxuriant growth .
两词在上述语境中含义相同。