Erigeron compactus

As treated by FNA (2006, vol. 20) and Kartesz (1999), Erigeron compactus excludes the more abundant species Erigeron consimilis, sometimes treated as a variety of E. compactus, in which case E. compactus as a species is more common, and only its var. compactus is rare.

Endemic to the Great Basin, where known from widely scattered locations in the western portions of four western Utah counties, ranging irregularly and infrequently through eastern and central Nevada (five counties) to the White and Inyo mountains of California (two counties). Approximately 13 occurrences are believed extant in California, with an additional 2 considered historical. Occurrences have not been mapped in Nevada or Utah, but literature agrees that populations are scattered and rare in those states. Not considered highly threatened in California; nature and degree of possible threat in Nevada and Utah is unknown.

Endemic to the Great Basin. Known from widely scattered locations in the western portions of Beaver, Box Elder, Millard, and Tooele counties in western Utah; ranging irregularly and infrequently through eastern and central Nevada (Elko, Eureka, White Pine, Lincoln, and Nye counties); to the White and Inyo mountains of California (Inyo and Mono counties) (Kartesz 1988, Stone 1998, CNPS 2009).

Approximately 13 occurrences are believed extant in California, with an additional 2 considered historical. Occurrences have not been mapped in Nevada or Utah. The species has been described as "infrequently known from eastern and central Nevada" (Kartesz 1988) and ranging " irregularly and infrequently through eastern and central Nevada" (Stone 1998). In Utah, "known from widely scattered locations" (Stone 1998); 11 specimens are noted by Welsh et al. (2008) and four sites are shown by Albee et al. (1988).

Not considered highly threatened in California (CNPS 2009); one California occurrence is at the site of a proposed observatory. Nature and degree of threat in Nevada and Utah is unknown.