Lower Montane Coniferous Forest is the habitat of this inconspicuous annual.
All reports indicate populations occur in association with conifers.
While typically in mesic situations, it can occupy drier embankments in granitic gravels and sand. Apparently this species has a very limited distribution. Old reports include North Peak, the north slope of Middle Peak, and an area near the Laguna Lakes. It is reportedly locally common in this Green Valley area. CNPS reports of this species in Baja California cannot be verified.