Physaria humilis (Rollins) O'Kane & Al-Shehbaz
Annotated by Peter Lesica, Sep 2006.

Montana: Ravalli County: [locality and coordinates withheld; status in Montana: S2 (Imperiled; MTNHP)],
Approx. 200+ plants present in various stages--nonflowering to fruiting, surrounded by krumholtz Pinus sp.; Assoc. spp.: Phlox hoodii, Arenaria obtusiloba, Smelowskia calycina, Dryas octopetala, Ledum glandulosum, Phyllodoce empetriformis, P. glanduliflora, Draba oligosperma, Sedum lanceolatum, Campanula rotundifolia, Catilleja lutescens, Antennaria rosea, Eriogonum chrysops, and E. ovalifolium. on top of ridge, ca. 50 m wide and 60 m long, very gravelly, pavement soil. Montana Natural Heritage Program. TRS coord. invalid on website; used Saint Joseph Peak for LAT/LONG coord. Phenology: Fruits.

Diane Pavek 177, Jul 16, 1990
MONTU, Accession: 113944