United States, California, Los Angeles, Los Angeles County: Transverse Range; San Gabriel Mtns., Horse Flats, 1 air mile NNW of Newcomb's Ranch at Hwy 2/Angeles Crest Hwy.
34.34278 -118.01
1720 meters
1720 m.
Flats with shallow channel with areas of surface water; yellow pine forest and chaparral with riparian vegetation along central channel. Fairly common perennial; petals orange-red, sepals red with green. On Artemisia tridentata roots near base of plant.