Thermopsis montana, the false lupin, mountain goldenbanner, golden pea, mountain thermopsis, or revonpapu, is a plant species which is native of the western United States.
The Latin specific epithet montana refers to mountains or coming from mountains.
It is used as a medicinal plant, and as an ornamental plant in gardens. However, it is suspect of being poisonous.
Pink, A. (2004). Gardening for the Million. Project Gutenberg Literary Archive Foundation.
Oregonstate.edu: Thermopsis montana