[2] It was recognised as a carnivorous plant in 2021, a rare occurrence within the Monocot clade.

[6][7] The native range of Triantha occidentalis is from Southeast Alaska to Central California.

The range includes the US states of Alaska, California, Idaho, Montana, Oregon, Washington, and Wyoming and the Canadian provinces of Alberta and British Columbia.

[1] Triantha occidentalis is a carnivorous plant; the flower stems are covered in a sticky substance, and have tiny hairs that produce a digestive enzyme, a phosphatase.

The sticky substance is able to trap small insects, which are digested by the enzyme from the hairs, allowing the plant to absorb their nutrients.