Hedychium flavescens

Hedychium flavescens is a perennial flowering plant from the Zingiberaceae. It is native to the Himalayas, Sichuan, and northern Vietnam, and naturalized in various other lands.
Commonly known as cream garland-lily or yellow ginger, it grows up to high. It is extremely shade-tolerant, and thrives in a wide range of soils. Since it has the ability to regrow from even a small fragment of the rhizome, which survive crushing, immersion in sea water, and even years outside of soil, elimination can be a problem. It is treated as an invasive weed in New Zealand because of its ability to displace other species.