Erigeron rydbergii Cronquist
Annotated by Heather Zimba, 2020.

Idaho: Custer County: Collected along Dry Creek 200 for meters off Dry Creek Road approximately 100 meters, 16.3 km NW from Double Springs Rd. Elev. 2198 m.
44.17504585° N, 113.5211427° W; UTM Zone 12, 298463E, 4894410N
Datum: WGS 84. Uncertainty: 3 meters. Coordinate Source: Garmin eTrex.
Collected along dry creek bed with rocky soil. Surrounding area includes: Artemisia tridentata ssp. tridentata, Chrysothamnus nauseosus, Tragopogon dubius, Populus, Ribes, Eriogonum, Boechera, Packera cana. White to violet ray flowers, yellow disc flowers, low growth form, well-developed taproot, basal leaves narrow to linear oblanceolate, phyllaries villous at the base, stem leaves few and reduced, hairs on leaves spreading. Leaf tissue collected for DNA extraction.

Heather Zimba 20-252, Jul 2, 2020
With Tyrell Styhl, Z. Anderson
ID, Accession: 191610, Barcode: ID197158