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8b. Arnica griscomii Fernald subsp. frigida (C. A. Meyer ex Iljin) S. J. Wolf, Taxon. 38: 142.
Snow arnica
Arnica frigida C. A. Meyer ex Iljin, Trudy Bot. Muz. 19: 112, plate 11, fig. 3. 1926; Arnica louiseana Farr subsp. frigida (C. A. Meyer ex Iljin) Maguire; A. louiseana var. frigida (C. A. Meyer ex Iljin) S. L. Welsh; A. louiseana var. mendenhallii (Rydberg) Maguire; A. louiseana var. pilosa Maguire
Involucre bases densely yellow-pilose. Phyllaries lanceolate. 2n = 38, 57, 76, 95.
Flowering Jul–Aug. Alpine meadows, tundras, and calcareous rocky outcrops; 0–1500 m; B.C., N.W.T., Yukon; Alaska; Asia (e Russia).
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