Therofon heucheriforme Rydb.

Montana: Bridger Mountains.
Syntype. 1 of 3 sheets, NY barcodes 186254, 186255, 186256 "Examined for North American Flora". syntype.

J. H. Flodman s.n., 28 Jul 1896
NY, Barcode: 00186254

Therofon heucheriforme Rydb.

Montana: Bozeman.
Syntype. 3 of 3 sheets, NY barcodes 186254, 186255, 186256 "Examined for North American Flora". syntype.

P. A. Rydberg s.n., 23 Jul 1895
NY, Barcode: 00186256

Therofon heucheriforme Rydb.

Montana: East Boulder. Elev. 2743 m.
Rocks. Syntype. 2 of 3 sheets, NY barcodes 186254, 186255, 186256 "Examined for North American Flora". syntype.

F. Tweedy s.n., Aug 1887
NY, Barcode: 00186255