Lowland sagebrush buttercup,
Ranunculus glaberrimus var. glaberrimus

Montane sagebrush buttercup,
Ranunculus glaberrimus var. ellipticus

Buttercups are highly toxic. The Okanagan Indians are reported to have warned their children never to touch or pick sagebrush buttercup and would poison coyotes by spiking meat with it. Native people also squished flowers or whole plants on arrow points as a venom.