Erigeron radicatus Hook.

Idaho: Custer County: Salmon-Challis National Forest, Lost River Range, Upper Merriam Lake Basin.
44.115172° N, 113.768128° W,
Datum: WGS 84. Uncertainty: 873 meters. Coordinate Source: Digital Map.
Moist sedge meadow at upper end of lake with small braided stream entering; substrate is a mixture of quartizite and limestone dolomite; surrounding forest composed of Pinus albicaulis, Abies lasiocarpa, Junniperus communis; subalpine plants include Salix nivalis, Lloydia serotina, Phyllodoce empertriformis, Phyllodoce glanduliflora, Poa alpina, Phleum alpinum, Caltha leptosepala var. sulfurea, Anemone multifida var. tetonensis, Saxifraga oppositifolia. Occasional on limestone, rays white. Phenology: Flowers.

Douglass Henderson 4692, Jul 21, 1978
ID, Accession: 132706, Barcode: ID144219