| Literature | Bourell 1981; Coville 1893; Flowers 1973; Harthill et al. 1979; Holmberg 1969; Ireland 1982; Kellman 2003; Kingman 1912; Koch 1950a, 1958; Koch and Ikenberry 1954; Lawton 1971; Lesquereux 1868; McGrew 1976; Mishler 1978; Shevock and Toren 2001; Showers 1982; Strid 1974; Sullivant 1856; Toren 1977; Watson 1880; Yurky 1990, 1995. |
| Illustrations | Malcolm et al. 2009 p. 39; Flowers 1973; Ignatov and Ignatova 2003; Ignatov and Smith Merrill 1995; Ireland 1982; Lawton 1971; Ochyra 1998a; Smith 1978. |
| Bioregions | CaR, CW, MP, SN, SNE, SW. |
| Vouchers | Del Norte Co.: along Oregon Mountain Road near Highway 199 about 6 miles south of the Oregon border, Norris 9869; Fresno Co.: near Boyden Cave, Monarch Wilderness, Sequoia National Forest, Shevock & York 12293; Lake Co.: Bachelor Valley near Hell's Peak, Toren & Dearing 6856 (CAS); Mono Co.: above Second Tyee Lake south of Mammoth Lakes, Inyo National Forest, Norris 86812; Monterey Co.: bluffs at the Pinnacles, Hunter-Liggett Military Reservation, Norris 87294; Tehama Co.: Highway 36 east of Red Bluff at Seven Mile Creek, Norris 21303. |
·