Ecotone of second growth douglas-fir forest and introduced grassland. Growing in middle of old dirt road. Associated with Tansy Ragwort, Bull Thistle, Trifolium spp., Linum, Plantago lanceolata Avena, Lolium, Bromus diandrus. 20 degree slope.
Voucher specimen; Bowcutt, F. 1996. A floristic study of Sinkyone Wilderness State Park, Mendocino County, CA. The Wasmann Journal of Biology 51 (1-2): 64-143.