| Literature | Bourell 1981; Bradshaw 1926; Brandegee 1891; Crum and Anderson 1981; Flowers 1973; Harpel 1980a; Harthill et al. 1979; Kellman 2003; Kingman 1912; Koch 1950a, 1951e; Koch and Ikenberry 1954; Lawton 1971; Lesquereux 1868; Long 1978; Mishler 1978; Shevock and Toren 2001; Showers 1982; Spence 1988a; Steere et al. 1954; Strid 1974; Toren 1977; Watson 1880; Whittemore and Sommers 1999; Yurky 1990, 1995; Zolotov 2000. |
| Illustrations | Malcolm et al. 2009 p. 166; Abramov and Volkova 1998; Allen 2002, Crum and Anderson 1981; Flowers 1973; Ignatov and Ignatova 2003; Ireland 1982; Lawton 1971; Ochyra 1998a; Sharp et al. 1994; Smith 1978. |
| Bioregions | CaR, CW, DMoj, DSon, GV, MP, NW, SN, SNE, SW. |
| Vouchers | Alameda Co.: Brushy Peak northeast of Livermore, Norris 87175; Kern Co.: Highway 178, lower Kern River Canyon about 3 miles east of canyon entrance, Sequoia National Forest, Shevock 9131; Riverside Co.: between Key Ranch and Barker Dam, Joshua Tree National Park, Norris 50502; San Luis Obispo Co.: about 1 mile west of Poso Summit, Norris 55205; Shasta Co.: Highway 299 about 2 miles east of Montgomery Creek, Norris 47538. |
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