For the species as a whole: Oregon to western North Dakota and south from southern California to Colorado and western Nebraska (Cronquist et al. 1984); var. frutescens: central Utah and adjacent Arizona and Colorado (Cronquist et al. 1984); Arizona, Colorado, Utah (Garfield, Kane, San Juan, and Washington counties) (Welsh et al 1993); var. crebrifolia: southwestern Montana and western Wyoming south to New Mexico (San Juan and Sandoval counties), Utah (Beaver, Millard, San Juan, and Summit counties) (Cronquist et al. 1984); Montana and Wyoming south to Utah (Beaver, Millard, Rich, San Juan, Sevier, and Summit counties) and New Mexico (Welsh et al. 1993).
For the species as a whole: dry, open places, from the plains and foothills to high altitude in the mountains (Cronquist et al. 1984); var. frutescens: [in Utah] wide variety of habitats from sandy desertscrub through ponderosa pine communities, 1155-2290 m (3800-7500 ft) (Welsh et al. 1993); var. crebrifolia: [in Utah] wide range of habitats from sagebrush through bristlecone pine communities, 1830-2780 m (6000-9100 ft) (Welsh et al 1993).
Place on L4 (Probably not present in New Mexico and apparently common in its range elsewhere).
Welsh, S.L., N.D. Atwood, S. Goodrich and L.C. Higgins. 1993. A Utah flora, Second edition, revised. Jones Endowment Fund, Monte L. Bean Life Science Museum, Brigham Young University, Provo, UT.
Day, A.G. 1980. Nomenclatural changes in Ipomopsis congesta (Polemoniaceae). Madroño 27:111-112.
Cronquist, A., A.H. Holmgren, N.H. Holmgren, J.L. Reveal, and P.K. Holmgren. 1984. Intermountain Flora, Volume Four. The New York Botanical Garden, Bronx, NY. (pages 127-129 with illustrations)
Constance. L. and R.C. Rollins. 1936. A revision of Gilia congesta and its allies. Amer. J. Bot. 23:433-440.